it's only hers that has done this so far, i have been playing the game for some time now and keep using the same save so I can't say for any changes to already played content but for new stuff it's the only problem I have had
Yes, the problem was definitely a memory leak due to Ren'Py limitations. We fixed it in the latest version we just released (v0.29.2.5), so you might want to give it a try and see if you can play through the route smoothly!