Hey, I also had some trouble with the composite collider going very strange with half of them not even working or not lining up properly.
You can try to fix this by going to your sprite import settings and turning filter mode to “Point (no filter)” And maybe putting compression to none or high quality.
Also don’t forget to put the pixel size back up to 32 and apply changes.
If this still doesn’t fix it, try setting up your composite collider and such again.