For some reason, the seasons change randomly every time I got to sleep,

What's the issue you encountered?

For some reason, the seasons change randomly every time I got to sleep, the seasson work find if I dont go to sleep

How can the issue be reproduced?

Do the /time set midnight and then use a beg to sleep the night, when your wake up you should see the season would have changed some something completely different

Mod Version

SereneSeasons-1.15.1-3.0.0.39-universal

NOTE: I am using a world that was generated without the mod, I only installed the mod yesterday

same here, it was late autumn then switched to early summer lol

It's really anoying, especially when growing plants due to their fertile seasons always changing

Had the same problem but when I removed MixinBootstrap-1.0.1.jar it got fixed.

MixinBootstrap is not a file included with Serene Seasons, and seems to be a dependency for other mods. I can't reproduce this issue at all, so it's likely another mod interfering like @MattEDG125 suggested.

Where's that file located?

Closing this because no additional follow up was made, and I'm assuming it was resolved