I’m not sure whether this is anything related, but I’ve been using a legacy /c/ URL on my channel, and for some reason, Roblox is now saying the URL is invalid every time I try to change social links.
It only started happening recently, probably within the last week (as I recently had to remove @logout as my X handle after realising there’s an actual account there lol and there was no issue removing that).
btw this post is a duplicate of one @pyxfluff made last year: Attempt to use a YT handle for your channel URL results in a error