Hi all,
I just activated my Mastodon-compatible username through the ActivityPub account setting, but mastodon.social can’t seem to find my username::
I’m not sure what I should try next, if anything. (Or if I just need to wait a bit.) I would appreciate any advice. Thank you!
Hello and welcome! 
There’s a bug where you must have a blog hosted by Micro.blog for this to work. In @manton’s own words in this reply.
Not a dumb question, that should usually work but it looks like a bug if you don’t have a hosted blog on Micro.blog. If you add a blog (Plans → New Blog) that should fix it. I’ll see if I can smooth this over later.
For the record, it works now. (I didn’t change anything, and just happened to check, ten days later. I am not sure when it got fixed!)
Yep, I fixed it. Glad it’s working now!