This is my first post here, so I am not sure if this is the right way to do.
I have found what I think to be a bug on RT 5.4. I use Windows 10, a Canon 80D and in this case a 10-18 STM lens.
The automatic chromatic aberration correction does not work properly if I select distortion correction at the same time. If I disable distortion correction, the CA correction is ok. Here is an illustration of the problem (the image looks blurry because it has a 200% zoom): https://www.sfrcloud.sfr.fr/web/app/share/invite/bpDYQzhm8E
Thanks in advance for your help.