Turboweb

I had same issue with Yubico TFA after applying the update and hot fix. All I did to get it working is edited - tbladmins - for the admin user logging in - removed the authmodule field (in my case - yubico ). Then attempted a login - I got an alert saying admin tfa is required bla bla bla - entered the yubico key data - got the backup key and everything is working fine..checked the db and the authdata is where it should be

I have just upgraded two installs from 5.3.6 to 5.3.7 using the incremental patch zip with no issues and the version number also updated correctly. Can you confirm you overwrote all of the files when you uploaded? If you're sure you did, then maybe do a hard refresh and clear your templates_c? Maybe re-upload the files again in case you missed something?