Sorry but I doubt this is an issue that comes from the QuestLog plugin, at least without any clear interaction with other plugins for two reasons. 1) QuestLog doesn't interact with any instance of the showChoice functionality 2) Let alone for the command menu, the QuestLog plugins lives in his own Scene that is deleted from the game once exited. Try to see if it happens in a vanilla project
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Doesn't seem to do it on a vanilla project. I'll have to do some digging as to what's going on. I'll assume that it has something to do with something that I did somewhere (the fun of game design). I appreciate you testing things on your end though.
*update after 3 minutes*
I apparently had the HUD for quest tracking huge and it messed with the screen. Changed the size of that and everything is looking right.