Huh?
Two bug in variants

The second one does not look like a bug, the jump spell just allows the grasshopper to ignore the pawn and so it is as if it were not there, and I believe in spell chess it is possible for blue to move in that situation, since it won't be checkmate when the jump spell vanishes.

look at the dots, the second one is a bug because the grasshopper should not be able to jump the jump-spelled pawn.
it should be able to just take the king.

Huh?
Could you please clarify which part you're having difficulty with?
I do not understand. I have played a 4 player chess game like this but there was no grasshopper thing.

The first (visual) bug is a major one. Thanks!
The second is known right from the beginning of Spell Chess release and is related to a high complexity of covering all cases with grasshoppers that is implemented as "an exception" internally for historical reasons.

I do not understand. I have played a 4 player chess game like this but there was no grasshopper thing.
Going to chess.com/variants/custom may help you out a bit on that
The second is known right from the beginning of Spell Chess release and is related to a high complexity of covering all cases with grasshoppers that is implemented as "an exception" internally for historical reasons.
Piece riders like knight and dabbaba riders are also affected by the jump spell bug. Is this also 'intentional' as well as the grasshopper?

Blue had no move, they could eight block (Ne7, like in 2 moves) c7 and something on b7 or make a flight square and escape with the king. Blue king couldn't move. In spell chess you can hang your king, it's like king capture. So, it gives check, but you can only move behind the invisible pawn. I don't understand how there can be such a bug...I assume this game is casual, since casual games are more likely to have bugs ( because of some different rules and variations that are probably still unexplored) but bugs are still rare I think.
First bug is that if you select both Atomic and Fatal Capture it has weird interaction.
for example in above example if you capture the green pawn there will be a extra dead queen.
The second bug is the rule spell chess and Grasshopper piece.
In this situation Grasshopper only can move to the marked squares but it shows that the king is under check. And actually the king can move!
Please fix thanks