REDmod is in my library, when going to the store page it shows the "go to my library" button but that ends up only showing the base game. Nothing I do is able to get the REDmod to install and show under the game managment menu under DLC.

Same here. "Connection to server failed" Restarting GOG doesn't work before everyone starts saying that.

Same here, 5 months later...

Same, 6 months later.

Fails at 3%.

When trying to download through Browser it returns 404 page not found...

Raised two tickets with the support.

Hey guys, I was getting this issue but just found a solution after repeatedly trying to exit and re-open Galaxy.
I ended up going into Cyberpunk manage installation and selected verify/repair. I actually just ended up cancelling it before it was even able to really do anything but when it tried to update again after cancelling that it worked. Might have been total lucky coincidence but worth a try.

did the same exact thing, and boi, be blessed, it worked. thanks a lot!

This is a genuinely awful experience and makes no sense. GOG is the problem or CD Projekt Red - Either way I can't find RedMod/Red Mod/redmod/red mod despite having 'purchased' it from the store online, because of course of course, it doesn't show up on the GOG launcher. Just horrible. Also tried the manage files verify trick - also not working.