Lightroom Classic Gradient/Radial/Brush tools not working on TIF

[thisrebelliousfeeling]

Hi everybody,

ss the title says, those three tools do not work on a TIF image I have edited and reimported from Photoshop. They do work fine on a .NEF (nikon raw). What happen exactly is that when I try to brush or add a gradient to the photo, the effect and the pin disappear as soon as I release the button.

Does anybody have any idea about this bug?