🔍 Issue with Rendering Distant Portals (Portal Interior Not Visible at Long Distances)

[Waytoxy]

Minecraft version

1.20.1

Issue Description:
When using Immersive Portals at long distances (hundreds or thousands of blocks apart), the interior of the portal is not visible – the world inside simply does not render. However, if the portals are close (e.g., 10 blocks apart), everything works fine.

We have tried:
✔ Using /forceload add to force-load chunks.
✔ Modifying immersive_portals.json (enhancedChunkLoading, maxPortalLayer, portalRenderLimit, compatibilityRenderMode).
✔ Increasing render distance in Minecraft settings.
✔ Disabling Sodium/OptiFine and other graphical mods.

But the problem still persists.

Expected Behavior:
Portals should correctly render the world inside even if they are placed far apart.

Steps to Reproduce:
Place two Immersive Portals at a very long distance (e.g., 1000 blocks apart).
Stand in front of one portal and try to see through it.
The portal will only show an empty void instead of the world inside.

Question:
How can this issue be fixed? Is there a configuration setting that forces portals to render properly over long distances?