I have just installed the latest version, 4.5.0 (before doing this I uninstalled the previous version 4.4.1 and restarted my pc). The release notes mention that the following issue is fixed - Applying a Dirt filter on top of Image to Material generates a black normal. However I am getting the exact same results I was getting previously (a black normal map when applying the dirt filter to Image to material... also a black normal when appllying the dirt filter to a material downloaded from the asset store.). Here is a link to my previous thread... https://community.adobe.com/t5/substance-3d-sampler-bugs/dirt-filter-normal-map-issues-v4-4-1-window... Thanks