Hi @marcio_oliveira 

Thanks for sharing the error and the context — this intermittent module import issue in Databricks Serverless jobs is a known behavior in some environments,
and here’s what’s likely going wrong :

Root Cause:
A race condition or cold-start issue in serverless clusters where:
-- The notebook starts executing before the module files in /Workspace/Tools are mounted/available.
-- Python import caches may be stale or inconsistent between jobs or cluster warmups.