Maximum string length to pass for Databricks notebook widget

CzarR
New Contributor III

Is there a limitation on the string length to pass for Databricks notebook widget? ADF lookup outputs about 1000 tables that I am trying to pass to the databricks notebook via widget parameter. ADF spends 30 mins to open the Databricks notebook and errors out saying "Run failed with error message Unexpected failure while fetching notebook". Is there a limitation with the length of the parameters.

What I am concerned is It worked few months ago. After so many days as we were trying to run it now it now getting this error. Nothing has changed on our end. Did bricks add any limitation with recent updates?