can't see partner's board or pieces to drop

nah I mean the server clears the premoves without right click and makes me lose time

The server does not make you lose time if you clear pre-moves. And, even if it did ... well ... that time is well accumulated "thinking-time" (as in, if those moves were to have executed, the time was lost anyway, irrespective of whatever position you put yourself in).

If you have not paid attention to PGN outputs of games (after completion) ... in the past few months ... (since the v3 release) ... you can very clearly see and track the timing of moves, as specified in the PGN output (which mirrors the output of a game if you leave it open).

In other words, as I previously said: Your comments are off-base. (And, you either get it, or you don't, and if you don't get it, then there's nothing much more I can say -- defensive people are going to be argumentative and defensive irrespective of whatever. -- Think what you like. Can't change the facts you can verify for yourself -- but you can always fight with yourself as long as you find that a fun topic to indulge. Like the French can't win wars, but like to talk it in circles and cry afterward ... Italy is much the same.)

 mm lol you seem to be serious so I'll answer seriously, probably u have not got the bug I complained about

1) How should premoves work on chess.com (and they generally work): if u premove a move, or a sequence, that move will be played whatever move the opponent plays, unless it's illegal (in a sequence of moves, all the legal moves before an illegal one will be played). The advantage is that it only takes 0,1 sec on the clock. If someone wants to "clear" premoves because he changed his mind, he can right-click. If the move is illegal, then it's automatically cleared and the following moves as well (You'll probably know it's very common to recapture a piece by premoving, because it will only happen if the opponent actually takes it, otherways the move is illegal).

2) what does the bug I am referring to consist in (I may have not explained well myself): The premoves I have played (they can be a sequence or a 1 move) are cleared by the server without me right-clicking. I'll add this often happens while someone other makes a move in one of the boards. This means I actually lose time (did not really understand what u said about "thinking time"???). Let's say my opp plays a move, and I have premoved: this way I should only spend 0,1 sec; BUT cause of this bug I have to replay the same moves I had premoved, and often lose 2-3 sec (I am also not expecting the bug to happen, so I have reaction time). May not be much, but in good level bug it's often quite important and if happens more then once in a game, can really help me to lose.

This said, I am really surprised to be called "off-base" my comments, by an adult (?) member, low rated moreover, who probably does not understand time issues in bughouse. Feel sorry

I went back and reviewed what you originally said. And then re-read my response. And, my observations hold. (Yes, I know the Bug "bug" you're talking about. It's not a "bug" that bothers me, personally.)

I understand your reservations, why you think it's a bug, but, as you note, you don't understand my observations on "thinking time." -- A "conditional" circumstance, and "IF...THEN" case-scenario ...

Let me give you an example: I've scheduled 2-or-3 pre-moves before my pieces disappear (a bug; but not outside of understanding; too many complex variations to track). And the pieces to the side of the board disappearing are "in-hand" (not what I am relying upon for pre-moves, etc). If I right-click to clear these moves, and go back to a single pre-move, I've seen .3 seconds taken off of my clock ... not the traditional .1 second.

And I don't have a problem with this. It makes sense to me. Fractional seconds can add-up over a long game, but, Bug games are typically not long enough to make such a significant difference. (We don't have this guarantee of technology, OTB. The most I've seen in fast, OTB bug play is at a minimum of .4 or .5 seconds between move-or-drop-and-clock-slap.)

Consider for a moment, if we take the microism of the observation ... you're going to claim a bug over .1 fraction of a second? (Yes, I'm an adult. And my low rating has nothing to do with anything related to similar observations. I play for fun. I don't take games too seriously. But it seems like you might.)

Pieces disappearing, especially in feature-additions such as pre-moves, with complex game conditions ... not something that bothers me, personally. (But, you might want to nit-pick, so, that's up to you.)

so let's go in order:

1) I grammatically understand what u say about thinking time, but I meant it does not make sense to me... we are not playing OTB and there is no motivation to compare... then OTB the opponent has the same disadvantage as you have (while I still have not understood if this is a common bug to everyone)

2) Unlike u, I may relay upon "in-hand" pieces for premoves quite often, expecially in the very end, when I need to keep under check my opp to make him lose on time and my partner may be as well short on time (I've lost more then 1 game couse of this bug, i assure you)

3) yes, I am going to claim a bug for a few sec delay that happens just sometimes, and I also think it's reasonable, cause if it can be fixed, why not??

4) the main point: I reported a bug, as I am supposed to do in this forum discussion, hoping it will be fixed... why the hell u need to give your opinion about the fact that you are ok with it? I mean, and so? I find it pretty annoying and I may be not the only one, if you do not find it a problem, just there is no need u comment, don't you think?

p.s. this is a game of mine where I reach move 10 having only used 2 sec on the clock (https://www.chess.com/live/game/2116040478), which is of course very useful, if i have to sit later in the game or if I need to chess my opp, and I can only do it by premoving

this is another game which shows the importance of being 1 sec up and premoves in the end (https://www.chess.com/live/game/2116051067) look also at partner game and notice that 2.10 minutes sit on both boards

It has been a month.  This has not been fixed.

Is it happening consistently, or just occasionally?

I would re-submit a bug report, btw, just as a reminder, since the developers are unlikely to be watching this thread.

Well, then the admins who watch these threads should communicate with developers.  It is a waste of my time to report things over and over again, be told over and over again "yeah, we know about those bugs", then they don't get fixed for months and months.

Every time a second game starts in the middle of a game, another game tab appears on the top right.  Whenever that happens, until you close the second game tab, you cannot see your partner's moves.  The frequency of this bug happening is therefore completely dependent (a one-to-one correspondence) with the frequency of a second game starting in the middle of your game.

As I already mentioned (repeatedly), this bug is also evident when you observe bughouse games.  In that situation, the bug also appears whenever a second game tab opens.  That happens after the third game you observe (every time) and continues until you close the second game tab.  This makes the bug very easy to reproduce -- if anyone gave a damn about all of the bugs with observing bughouse games, which I have reported for 6 months, but no one at chess.com seems to give a damn about.

I will check into this. Honestly I have not seen any other reports like this, but will check! 

erik, just follow any bughouse player for 3 games and you will (with 100% certainty) see the partner's board disappear the third game and all subsequent games.

If you play a lot of bughouse, you will see another game randomly start and immediately be aborted in the middle of your game roughly 1/25 to 1/50 games.  You will not be able to see your partner's moves after that until you close the extra game or reload your browser.  Everyone I have talked with who plays bughouse encounters the exact same problem.

I do not understand how to play here - especially on the free account ... Endless technical errors, my partner takes my stock of figures, and I can not do it, etc. Sometimes the image itself seems to "blur" like a spoiled monitor. This is a mockery - no game has brought me anything except disappointment and bitterness.

Firefox. Can never see the partner board. Literally useless.

I still get this bug. Chrome. I cannot see the pieces my partner drops.