Bad english.
Some bad coding. You can softlock the game, like the point where you listen in on Kiyoko's call, if you approached the desk from the right, the auto walk path doesn't work and the game is locked.
The time of day breaks like if you are past midnight and then go to sleep it will jump multiple days.
Sometimes the background is on top of the foreground or the clothes don't spawn. And also the reverse like Kiyoko shower has both of them enter fully clothed as sprites. While the earlier modeling her large art was nude.
You can retrigger old things like finding the keys, gym workout post sex, concentration level 1, etc.
I would argue the mouse movement thing is distracting especially since people might use controller.
The objects don't have collision a lot of the time.
Things can fire out of order, like going to do drunk and horny 2 for the first time, but instead it was couch movie sex and "end of her content", or confession about Angie can happen post Sex with nun where she acts like she has never seen MC naked.
If you refired the Gym scene, the teacher is not there for class anymore just presents.
When you go with Megan to her house there are 2 isabelle
The dev really needs to play their own game without cheats and purposely try to break things.
Post butt job bench scene with Ashley the game removed all collision.
all of these problems were with 14.2 on a new save and no cheating.
Can get repeats of text, like on banshee if you remove each fire at the start the MC will say the same thing 3 times.
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Game has existed for about 3 years, would have expected something way more polished than this.
Would probably be helpful if the game was ported to RPG Maker MZ to make a lot of the base stuff not screw up.