Online chess - move not recognized?

Am a bad player and it's no big deal. But for the record, i feel the website has bugs. In a routing situation, I exchange bishops - or thought I did. Then that bishop strikes again..

Are you aware of such software bugs? Just wondering...

I've been going to alcoholics anonymous but it hasn't really made a difference

There are definitely bugs although the only recent situation I remember was when the board started going crazy, putting pieces in weird locations after I moved.  Then after a second it went back to normal.

But it kept happening until I refreshed the web page.  Which is what I recommend if you notice anything weird.  I say that because I imagine any type of bugs this site has are not in the rules engine, they are more 'pure' software faults like the whole program just going into a bad state as I described above.  Maybe from a missed bit of information from the server etc..