Replacing creatures has occasionally crashed the game for awhile now, this probably isn’t a separate bug. If it happens again, that would mean it’s more likely a specific bug, as the replacing bug is pretty rare to trigger.
I believe the bug occurs when replacing a creature token and is not limited to these specific cards. There was a similar bug back during SOI that was causing the game to crash when Prized Amalgam returned to play and replaced a Zombie token. This was eventually fixed but it seems like the fix was undone in a more recent patch.