I have been using the iPad Discourse app with no problem for quite a while but recently it lost connection to the servers I use.
Pressing the connect button brings up the authorization dialog but tapping the Authorize button just closes the dialog and nothing changes. This happens with 4 servers, including this one.
I have deleted and reinstalled the app, but nothing changed. My iPhone does not have this problem, only the iPad.
I now notice that in my preferences in this server under Apps the iPad does appear as a connected app, but in the iPad Discourse app itself it still doesn’t work.