I have the Adjust 5 plugin, I use it with either LR or PS.
I noticed recently that if I I make a mess or something, and I hit ‘Reset’, all the boxes will be unticked, yet if I hold the left click on the image (or toggle between the Original & Processed version) I can still perceive a very significant difference between the two images.
What’s the deal with that?
In my head, if you’re in the plugin, have clicked reset, or even if you’re in a preset and you go through the list and untick/uncheck every single box there is, then the image should not show or be any different when toggling between the Original and Processed version…
I see in your screenshot however you still have Adaptive Exposure ticked, I’m talking about everything unticked (so I guess the reset point is moot), I still see a strong visible difference between toggling the Processed and Original button (or using the left click hold on/off).
Yes it looks like the original is brighter. I would suggest you raise a technical support request and make sure that you specify the color profile of the image and also make sure that the monitor is using the correct ICC Profile.