Hey, so I have been getting this problem where if I try to open an unzipped folder in my Unity Hub, it will say, "This Project Is Invalid." Could someone please help me fix this? Sorry, I just need to review a few games, and time is running short. Thank you!

sometimes there is only 1 folder inside the unzipped folder. If so, select that one instead of the parent folder. This results when people zip the wrong file.

Oooh! Thank you! Maybe that is what happened! Thanks for the quick reply!