School Performance Drop Since Update [ Edited ]

[MyGalFriday]

Since a June 2020 update, two teenagers in one  family experienced a sudden drop in school performance. Both went from Excellent to OK.

They regularly did homework, extra credit, had friends, and went to school in a good mood. I spent a week continuing those behaviors plus making sure they were at school on time (rotational play in neighborhood), but their performance dropped from OK to Poor!

I ignored the phone call from the school to keep them out of trouble. Is this a glitch?

[MyGalFriday]

Forgot to mention playing on PC with no custom content or mods.