Lightmap bake fails when trying to bake for the second time to the same path

[passivestar]

Tested versions

v4.3.beta3.official [82cedc8]

System information

Godot v4.3.beta3 - macOS 14.5.0 - Vulkan (Forward+) - integrated Apple M1 Max - Apple M1 Max (10 Threads)

Issue description

Baking for the first time succeeds, but when trying to bake for the second time to the same file it fails with

Another resource is loaded from path 'res://node_3d.lmbake' (possible cyclic resource inclusion).

Restarting the editor solves the problem

Steps to reproduce

1. Open the MRP
2. Delete LightmapGI node
3. Add a new LightmapGI node
4. Click bake, choose the same lmbake path and agree to overwrite

Note: sometimes it also fails without deleting the node and just clicking bake on the same node twice is enough, but steps above reproduce it more reliably

Minimal reproduction project (MRP)

MRP_another_resource_loaded.zip

[viksl]

I can confirm lightmap does brake on multiple occasions on windows 11 in godot 4.3 [383a6e4].

It also freezes when I bake then change the probe count up to the max and try baking again.

[SpockBauru]

Tested all way back to 4.0.0 and @passivestar's file path issue was also reproducible there.

Couldn't reproduce @viksl issue with the probes, it takes a long time to bake but is finished eventually.

Godot v4.0.stable.official and Godot v4.3.beta3 - Windows 10.0.22631 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3080 (NVIDIA; 32.0.15.5612) - 12th Gen Intel(R) Core(TM) i7-12700KF (20 Threads) - 32GB RAM

Edit: Closing and opening the scene tab seems to fix the issue.

[viksl]

@SpockBauru I doublechecked but it freezes for me every time without any resolution. It always starts at 26% for me and never moves. Godot becomes unresponsive, it always happens to me if I select the 32 subdiv (all the other subdivs work for me just fine) - even without doing what this report mentions, simply just starting a freash project with 32 subdiv lightmapGI and and box mesh then hitting bake lightmaps and that's the end for me forever.
(I'm on win11, intel i5 13600kf, rtx 4070, 32gb ram so I don't think it's just long because my hw isn't enough)

I've double checked the processes and performance meters and both my gpu and cpu are unused during the bake step (not processing just idle 1%).

In the windows terminal it says Done baking lightmaps in 00:00:00.

Though since it doesn't need the same step as this report it's probably a different issue?

EDIT: I just noticed @passivestar 's other lightmap issue looks very similar to what I'm experiencing in the screen above (the issue: #94216).