Hello,
Since I updated to 23.1, I have an issue with FftMtf analysis settings, which has no “Wavelength” attribute. You can see the error on the screenshot. The test script I am showing is a modified MTF ZOS-API example (PythonStandalone_04_pull_data_from_FFTMTF.py). This sample works ok by itself but fails if I try to add line 189 in the screenshot.

I tried to revert to 22.3 but it did not help. I am not 100% sure it is linked to the update.
Any ideas?