Hi,
I have a problem using PIL (version 9.1.1) in Revit 2022 with python-3.10.5
What am I missing?
Hello,
you must save to validate the change of the Python engine.

It is not advisable to mix CPython packages versions (currently Dynamo CPython engines are in version 3.8.xx 64bits)
this page
and this topic may be help you
I think your PIL package (3.10) is not compatible with the current engine Cpython 3.8.x 64bits.
look at the links that I gave concerning the procedure to install packages