I don't think that twitter is blocking this activity. I am using proton and it works fine, although like 2 weeks ago there was a bug that broke search, that was a bug though.
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Doesn’t work for me using Proton VPN but works when I turn it off. I’ve seen other people say the same (using other VPNs too)
I would try updating your phone and proton. What OS? Are you using the app or a browser?
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That's weird, my proton is active, set to always on, I'm using secure core, no split tunneling, all brave shields are up except for JavaScript, and it works just fine. I wonder if something about graphene os helped fix this faster. Can you provide any details? I could ask a coworker or two to try to replicate the issue.
I just had a coworker show me on his android, using PIA, seems to work just fine. It does seem like a lot of people have this issue though. What's your exit point?
Just tested it on iOS app with VPN on and works there so not sure why they’re blocking it on desktop. Likely a bug in that case