4x5

Hi arnim,
The Nik Collection 2 by DxO should run with Affinity Photo with the exception of HDR Efex Pro 2 (the plugin loads but doesn’t display any image in the preview window and may crash Affinity Photo when/if you hit Apply). Viveza 2 also may display incorrect colours (colour shifts) in the preview window (the Navigator display them correctly) - zoom in in these cases may display them correctly. Apart from these issues (there may be others we are still testing the latest release), all the rest should run/work in Affinity. I advise you to download the trial they have on their site and check if it works for you on your system.
A few users are also reporting the font updating issue with Nik Collection 2 but I believe these problems are due to a faulty Nik Collection upgrade/installation - we are investigating this.

Hi 4x5,
Welcome to Affinity Forums
The old Google Nik Collection and the previous Nik Collection 1 by DxO don't work with Affinity Photo 1.7 (loading fonts dialog issue/freezing). DxO has launched Nik Collection 2 a few days ago however however there's also a few users reporting the same loading fonts issue with this version while for others it seems to work without problems. I advise you to wait a little until we find out what's going on or download the demo if you want to check it out for yourself if it works on your system.

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