Having an odd issue with a python toolbox that I'm assuming is related to parameter validation.
Overview...
Issue:
I'm following the recommended debug workflow as listed here https://www.esri.com/arcgis-blog/products/arcgis-desktop/analytics/how-to-debug-python-toolboxes-in-....
This was working fine in 2.8.3 but not after we updated to 2.9.3.
That is frustrating when it works before an upgrade but not after. Sharing your code would help find what the issue may be.
I take it you mean mapframe.camera.setExtent(...)?