"Not available outside your network," but it is...?

Remote Access status on my Plex server says it's "Not available outside your network." However, the couple of people I currently share my server with have no issues accessing it, I've verified port forwarding settings, I just loaded up the Plex app on my phone (wifi off, on cellular) and everything loads up fine.

If I hit the "Retry" button next to the public port, it'll do the connection test and show that my server is indeed accessible from outside my network. But then, usually anywhere from a few seconds to a few minutes, it'll change back to showing it's unavailable.

Since remote access doesn't actually seem to be unavailable, I guess it's not a huge deal. Just kinda bugs me. Server version is up-to-date according to the status page (Version 1.32.5.7349) - anyone else on this version noticing this issue?