I upgraded our Octopus server from 3.2.14 to 3.2.22. I got the usual suggestion to upgrade our tentacles, so I tried upgrading one. I immediately got “An error occurred when sending a request to ‘https://xxxxxx:10933/’, after the request began: Object reference not set to an instance of an object.”
Performing a health check on that tentacle yields the same error message. Restarting the tentacle doesn’t help.
As a result, this particular tentacle is now dead in the water. I can try uninstalling and re-installing the tentacle entirely, but I hope this isn’t necessary for all of our tentacles. Any advice?