Hi!
@pantheis @Guigouz
There is a big chance that your issues might be resolved via downgrading BFD Player version and using a slightly changed mapping for Surge SE kit.
I’ve uploaded windows/mac installers with updated mapping (thanks to Chaser) and posted links in this post.
P.S.
The initial images uploaded by Chaser didn’t do the trick in my case (MacOS). However, after he uploaded an original, big, 5.5 GB image of BFDPlayer+Core library installer, I’ve managed to re-pack a minimalistic, software only (no content) installer image with a fixed mapping for Alesis Surge Mesh SE kit included (which probably will work for nitro kits as well).