Funnily enough Nik works ..... though Affinity says it doesn't

[Jaffa]

This turns out not to be a problem (yet anyway!).  I followed the very clear Vimeo Video by James Ritson to plugin the Nik Collection to Affinity Photo.

Despite ticking the box bottom left and rebooting,  I seemingly could not get six modules to "work".  Tried ticking and unticking, restarting Affinity, and kept getting the

dialog box under.  So I rebooted the whole desktop - still the same.

In the end, I went to Filters, Plugins, Nik and saw Silver Efex Pro 2 (the only module I really want) as an option.  Tried it and it works perfectly. 

Still get the dialog box shown under ........ but not a problem - it seems.

Thought I might let others know!

 

[4x5]

This is perfect! I just posted out on YouTube to see if this would work, as Silver Efex Pro 2 is what I would use too.

[John Rostron]

Many perfectly workable plugins have this "unknown" status. I would guess that the plugin does not provide Photo with some crucial bit of information that Photo is looking for. Hence the option to allow unknown plugins to work.

John