The errors we are experiencing when trying to update a profile will be fixed late Friday evening the 12th. If you can't wait that long, there is a workaround available:
The current workaround is to always change the value of the "Software Version" profile field when updating your profile. To update your profile, change the desired field(s), along with the value of "Software Version" and click save. You can then change the "Software Version" field back and hit save.
As mentioned, this should be fixed with an update Friday evening.