I am having a similar issue as @user-100114328
The light from torches is completely broken on 1.14.4. The light cascade appears blocky instead of smooth as it should be. This shader needs to be updated to work with 1.14.4 as it was designed for 1.12.2.
I really wish that Sonic Ether would update it. I like PTGI but I can't run it at 4K 60, unlike SEUS Renewed.