There still seems to be an issue with the repackaged version of RawTherapee 5.8 and it’s ability to recognize lenses.
I’m running Windows 10 Enterprise (build 1803).
This screenshot is from a fresh install of RawTherapee 5.7
Note it has correctly detected the lens and displays that in the main window and in the PLC section of the command windows
Now, I’ve uninstalled 5.7 and installed 5.8 - I’ve also deleted the PP3 files to make sure the directory is as it was. This version of 5.8 was downloaded today, 27th of July, 2020.
Per the screenshot, it is NOT detecting the lens correctly (same raw file):
However, it appears the profiles are there as I’m able to manually select and apply the profile and it does appear to work:


However, the lens remains unidentified in the main window, even though the profile is working:

Please note that the only changes I’ve made to these screenshots is to edit out the path as it includes my name, which I’d prefer remain private.
It appears to me that the issue is the actual detection of the lens; which a regression as it was working correction 5.7