When viewing Raw files with this latest version 1.7 the main screen is very much dimmer than the navigator screen. This was not a problem before the update.
The 32 bit preview seems to be causing the problem in that if you adjust the Gamma and exposure in the 32 bit preview, the main screen brightens to the correct brightness, the navigator screen stays the same. However, this setting is then lost on opening a new file, so you have to do this every time.
I am using windows version 1903, so maybe this could be the problem if other people are not affected, however the previous version was OK with version 1809
Not had time to do further tests but will update with more information when I do.
regards