broken

normal

broken

Same location, same blocks, same shader settings, all that changed was where I was looking. In the past I thought it was getting cut off at chunk borders but the light casting this is in the middle of a chunk. The bin size was set to 8 in all of these images and that along with the light being near the center of the cunk makes me think it was getting cut off at bin boundries.

Heres the shader config used to capture those images if that helps. ( using latest code from github )
Shrimple-main.txt

Whatever the issue is, its espeicaly noticeable in trial chambers.