I am owner of a Sharepoint site with around 20 workflows running on a particular list. Yesterday I had an issue reaching the workflow inventory (/NintexWorkflow/WorkflowGallery.aspx). It would hang and then give me an error "Sorry, something went wrong - an unexpected error has occurred" (real helpful, Microsoft).
I tried reaching the Workflow inventory a few different ways, none worked yesterday:
TODAY, #1 is working, so I can see/edit my LIST workflows, but #2 and #3 are not working (just hangs and then error), so I can't see/edit my SITE workflows at all.
Site workflows are still running and operating.
Side note, and I hope this isn't related, but if I go to site settings>scheduled workflows I get an immediate error: