Cave lighting bug in deferred tecnical preview

Device: Xiaomi Poco X6 pro

Texture packs:
-poggy's bright dreams
(in both modes)
-prizma shader

LIGHTING ERRORS IN CAVES:

At the entrances to the caves there are still several lighting errors with shadows that appear and disappear (video attached), also when you make a straight hole from the surface into a cave, the cave starts to have lighting errors no matter how far down it is.