There are several errors when submitting forum topics:
Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 65552 bytes) in /home/forum/repo/www/core/includes/bootstrap.inc on line 2593
Probably not the reason, but worth to do a quick check:
Sometimes the update cache interferes, so if something's odd with updates - some module (or core) claims to have updated, but then...
The issue with checking for updates in the BackdropCMS dashboard makes website development and maintenance more difficult. I manage more than ten websites hosted by two different providers, one...
Comments
This is probably related to:
https://forum.backdropcms.org/forum/forum-preview-throws-error and/or
https://github.com/backdrop-ops/forum.backdropcms.org/issues/67
Thanks for reporting the problem.