[cgbeige]

I tried reloading this displacement TIF texture but it doesn't want to show up in the viewport. It's fine in the UV Editor though. You can see below how the flat grey area (the latest reloaded texture) is shown in the UV editor but not in the viewport at the left:

[Mihnea Balta]

Are you using the Maxwell viewport or the regular one? Does it update if you make a slight change to one of the material parameters, like a layer opacity or a BSDF weight?