Hey @staff, see if you can help.
We're used to receive push notifications from mastodon.social into @pachli (our preferred fedi Android app), using the server at up.conversations.im from Conversations as our UnifiedPush distributor.
It's been working fine for months (and still does for @daniel's app, the push server and Conversations work without a hitch), but lately it's been failing on Pachli, and with my limited understanding, it seems like the point of failure is at mastodon.social.