Version Bug

When I try to download a new version of Minecraft on the launcher it doesn't even show the version if you click on the drop down menu nothing pops up this is a resent problem with the new update that came out as I did not have this problem back before 1.16.5 I can still play 1.16.5 but I cant play any other version I tried deleting Minecraft and the launcher from settings and reinstalling it but it didn't work