Windows update broke my l2tp vpn connection?

Hello, I have a USG setup using the built-in radius VPN. this has been working fine for awhile but it seems a recent windows update has made it so my windows machine can no longer connect using l2tp with pre-shared key. Would updating the USG fix this (havn’t updated in awhile), or is this an issue with windows?

I believe the update was kb5018410 which also broke other vpns apparently, but windows out-of-band update that supposedly resolved the vpn issues didn’t seem to fix my problem.

Anyone know anything about this?