PS: I have waited like 30 minutes after it first started to see if it was happening to just me, or what.
I have confirmed that this is not an issue with my wifi, as when I swapped to an alt account of mine, I was able to join games just fine. Swapping back to my main account results in the error again.
I’ve tried launching Roblox both, directly from a game on the Website, and through the Roblox Player Desktop app.
No, I use bloxstrap because Roblox didn’t originally have Text Scaling options, but now that they do I jus thaven’t had the chance to change the setting back on Bloxstrap.
I’d also like to chime in and say that this typically happens if you have the early access Server Authority enabled, I’d follow the steps of other users here to disable it to play with others.