Intermittent "Request to Webtask exceeded allowed execution time" Auth0 log

We have been tracking logs from auth0 and have found intermittent occurrences of “Request to Webtask exceeded allowed execution time”, associated with several different failure codes f, fdu, fs, …

I read the other topics referencing this issue, and have done the following troubleshooting steps:

  1. Verified all our rules/custom database scripts are always using callback()
  2. Tested each rule/custom database script with multiple inputs
  3. Turned on real-time web task logs and added console.log statements for all rules/custom database scripts. All actions (both test and from the web app) for login/signup did not take longer than ~3-5 seconds

Looking for insight into what might be the root cause of seeing this intermittent log statement