/kbin Issues

Hi, not sure if this is the right thread but here goes.

Issue:
Threads do not seem to federate properly.

Description:
Until a month ago or so, submitting a thread to a federated instance (tested on: feddit.it, sh.itjust.works) threw an error page, but the thread was regularly posted. Example: https://feddit.it/post/1868675

As of at least 2 weeks ago, the error page remains but threads do not federate anymore. Example:
https://kbin.social/m/teoriamusicale@feddit.it/t/546143/Analisi-di-Pezzi-Pop-5-Faith-Hill-The-Way-You

If it can be of help, posts, links and comments seem properly federated to the same abovementioned instances, i.e. appear on target instances within a few seconds. No error displayed when submitting.

Hope this can be addressed sooner or later. Right now I'm using local accounts on those instances to work this around.