For some reason, one of my figma files have been changed to view only. I am positive I did not do this and I have the correct account logged in. I have had editing rights before today, but I’m not sure when this change occurred, because its been a little while since I’ve last used the file.
An easy workaround is just making a copy of the project then deleting the old one.
I found a very similar problem here: Editing Rights Suddenly Changed to View Only