Overly bright textures in linear color space, how to solve? [Solved]

Hello guys,

today we realized that we still had our project in gamma color space, and following the suggestion of our 3d guy we switched to linear color space. As expected indeed (i had already done it in other smaller projects) colors got brighter, particles started superposing much better (the smoke effect when from zero to hero), etc.

But a lot of recently made UI elements got a very weird effect. When the editor is not playing, they look perfect. When I hit play they brighten up a lot. I checked and the sRGB is ticked in the import (ticked or unticked does look the same anyway). When i stop playing they return to normal color (the change doesn't only happen in the camera, but also in the scene view). I also tested the same textures as sprites and they have the same problem. To make it even stranger, some textures produced quite recently (after some and before some of those that have the problem with brightness) instead keep on working like a charm.

We made some experiments, and indeed, when exporting from photoshop purely linear textures (that look very dark in inspector and editor) when we hit play mode, those become normal.

As additional hints i figured out. Those same textures that get that bright in the main project, work well in a small simple project in linear space, and also, we tried to process one of them through NUKE (just loading it and exporting it from there as PNG) and it works.

Here's an example of how they look (it almost looks like no sRGB is applied, but it is) in scene (with no play mode active) and in play mode (looks the same in scene) once play mode is active.



I am quite confused on what to look at now given this overall strange behaviors, any idea if it's a bug of any sort, if there is something weird that i might be doing or if anyone had any similar experiences?

Working in Windows 10 with Unity2017.2.0f3

Cheers and thanks in advance,
H