Using the Wisdom Shaders pack (v3.2).

Monitors do really weird crap when it's raining. They reflect text image

using:
cc-tweaked-1.14.4-1.85.0.jar
OptiFine_1.14.4_HD_U_F4

shaders:
Sildurs Vibrant Shaders v1.25
I have tested on light, high and extreme and they are all have the same problem.

After spending a couple of hours looking at the code of the Wisdom Shaders and reproducing it, I'm really not much closer to figuring out why it happens.

Here's a newer screenshot from 1.14.4 which also show that the light glows through the arm partially.

Try playing with the normals :)

As with #95, I'm going to flag this as "Cannot reproduce" for now. My laptop cannot run most shader packs, and so I'm unable to test/fix this problem.

If anyone else has this issue, and/or is able to help out, comment and I'll reopen.