So i used pngtuber plus in the past and made a model with the tsurudraws preset . now i tried to change the model up but when i select a sprite and press replace sprite, nothing happens. normally the window would open. everything else works, i can access my save files, add new sprites, just replacing them doesnt work, just no reaction. i tried deleting it and reinstalling, had friends who knew more about pngplus look at it, both nothing helped. any fix or something that could have caused this?