Black outline when using shaders on a projected mini build

[DeadmanTheGod]

According to your testing, does the issue occur with ONLY Immersive Portals mod installed?

Yes

Forge Version

43.2.0

ImmersivePortals Version

2.3.5-mc1.19.2-forge

Latest Log

https://gist.github.com/DeadmanTheGod/8decae4932a6ffa3969bbfedf1f05cf4

Crash Report (if applicable)

No response

Steps to Reproduce

1. created a projected mini build with portals ...
2. turn on shaders BSL, Continuum 2.0.5, Rethink Voxels. etc with rubidium/oculus
3. see the black outline
   

What You Expected

i expected it to b invisible.

What Happened Instead

Black outline surrounding my build as seen on the screenshot

Additional Details

No rush on a fix.. just figured i post it here :)

Please Read and Confirm The Following

• I have confirmed this bug can be replicated without the use of Optifine.
• I have confirmed the details provided in this report are concise as possible and does not contained vague information (ie. Versions are properly recorded, answers to questions are clear).
• I have confirmed this does not happen on the fabric version (If it does please report to here instead).
• I have confirmed I'm not using a hybrid server (Magma, Cauldron) or a different (non official) Forge Server release.
• I have confirmed this issue is unique and has not been reported already.