Hi, I'm in a similar situation to yours, I used that same guide and some games (Zelda:BOTW, Fire Emblem among others) won't work. I'm on Hekat 5.1.1, atmosphere 0.10.1, HOS 9.1.0, Goldleaf 0.7.3, Tinfoil 7.0. NSP installing with Goldleaf straight up fails ("Invalid NCA (might mean missing sigpatches or a too low firmware) (4518)". Tinfoils installs the .xci files, but the data is corrupted. Not sure if it matters, but I'm running CFW on emuNAND because Hekate throws up an error if I try to launch CFW on emumc (that's a whole other issue). Here's what I did:
1. I dumped the fuse info and TSEC keys from Hekate (not sure if necessary, but I found it mentioned in a guide somewhere).
2. I dumped all keys using Lockpick-RCM (I left them in their original location: /switch/.prod.keys...I'm assuming I don't have to move them somewhere else...)
3. I used the files in the post below yours (not entirely sure if I should use Kosmos patches or atmosphere, but Kosmos worked for you so I used those).
4. I had to change the hekane_ipl.ini file provided with the Kosmos patches, because the kip1patch=nosigchk argument no longer works with Hekate.
Any ideas? Are the keys in the post just after yours already outdated?