After editing 32-bit tif in photoshop reloading image in VrayHDRI has no effect.
I have to restart 3dsMax.
Bitmap proxies etc. disabled.
Vray 3.6, max 2018, win 10
Does it happen only with this Tiff file ? Can you try with different file or format? Have you tried to close Photoshop after the image is edited and saved?
Because I don’t see any problems with the V-Ray reloading in a quick test using Tiff files.