Please use the search next time..
https://f95zone.to/threads/lucky-mark-v17-0-super-alex.5483/page-514#post-2015093
I would say it's software related.. your sistem fails to load the animations properly.. probably missing codecs, video driver or something..
Try to update this maybe
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You're the first one in a quite a few pages complaining about this... so not buggy.
Try to open your save with any text editor, find the <eventMain> line.. check what number you have there, open the cheat sheet attached to the op and you ll maybe find your missing part there. By the end of v16 it should be 23/24 if you talked with Bill about Chris is refussing to meet Cheng and Talked wi Chris about visiting her mother