Piet Brummer

Dear Old Bruce, you gave me the clue! The bit-depth of the document was 32. After I converted it (via menu Document -> Convert Format/ICC profile...) to 16 all plugins work. Thank you, Piet

PS: I use the Nik Collection also (succesfully) with Capture One 20 and DxO Photolab 3 on the same pc. Could that be the reason why it doesn`t work with Affinity Photo?

I have followed ALL the instructions here, there and everywhere meticulously on installing the Nik Collection on my pc. I work on Windows 10 with Nik 2.5 latest version and AP 1.8.5.703. My AP Preferences screen shows as follows; AFFINITY PS Files is the folder I created for the DxO folder created by the installation proces. l When I - with a pixel-layer selected - go to the Filters menu, all but one plugins are greyed out/don't work. Is there anybody, please, who can help me with this. Thanks a lot in advance!