Has anyone else had an issue where pubsub events stop getting consumed? The logs don't indicate any failures, it just stops collecting altogether. The workaround is to just disable the pubsub input and re-enable it.
I experienced this issue when I had a " / " character in the add-on input name.
https://answers.splunk.com/answers/739150/fix-input-name-bug-splunk-add-on-for-google-cloud.html
For the "/" character error, there is a specific error log that flags up as shown in your link.
For this issue that many people seem to be hitting (including myself), the app script simply seems to hang and no error messages are shown even with DEBUG set in Logging.
I have the same problem here
I have experienced this issue event though there's no "/" character in the input name. Add-on version: 1.3.0, Splunk Enterprise version: 7.2.5.1