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

Yes

Forge Version

47.4.0

ImmersivePortals Version

3.0.6-all (mc 1.20.1)

Latest Log

N/A

Crash Report (if applicable)

No response

Steps to Reproduce

1. Install Immersive Portals
2. Download test data pack
3. Use the following as the only attempted portal

{
  "schema_version": "imm_ptl:v1",
  "from": [
    "minecraft:overworld"
  ],
  "to": "immersive_portals:alternate5",
  "form": {
    "type": "imm_ptl:heterogeneous",
    "frame_block": "minecraft:planks",
    "area_block": "minecraft:air",
    "generate_frame_if_not_found": true
  },
  "trigger": {
    "type": "imm_ptl:use_item",
    "item": "minecraft:compass"
  }
}

What You Expected

Compass to create a portal to alt5 when used on a plank frame.

What Happened Instead

Nothing.

Additional Details

This is likely related to issue #152 as I see the 1.20.1 branch does not include this change. I'm unskilled in building mods myself to test this though, but if Forge still does not allow custom registery namespaces this should be the required fix.

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.