Hi, I am from databricks eng and we have had the driver developer look into this and could not repro. A couple of things to note:

1. 2.6.33 is a pretty old driver that does not have Cloud Fetch support.

2. nowadays, later versions have Cloud Fetch enabled by default. The client/server interactions' shape has changed significantly in the later versions. Can you try the new versions?

3. if you do not mind, would you share your client-side fix, so I can pass it on to the driver developers to take a look and see whether they are still relevant to include in the improvement to the later versions?

Thanks for your patience and support!

eng-partner-eco-help@databricks.com