Vulkan Mobile: ReflectionProbe cause a spam of 6 errors when enabled in the master branch

[SpockBauru]

Tested versions

• Reproducible on 4.5-master, 06/13/2025
• Not reproducible on 4.5.dev5

System information

Godot v4.5.dev (cdbec9a) - Windows 11 (build 22631) - Multi-window, 1 monitor - Vulkan (Mobile) - dedicated NVIDIA GeForce RTX 3080 (NVIDIA; 32.0.15.6614) - 12th Gen Intel(R) Core(TM) i7-12700KF (20 threads) - 31.81 GiB memory

Issue description

On the Mobile Renderer, each time you enable a ReflectionProbe causes a spam of exactly 6 errors. This error happens on Windows in the master branch.

Steps to reproduce

Get the current Godot on the master branch (06/13/2025).
Create a project with the Mobile renderer.
Add a reflection probe.
Observe the errors.

Minimal reproduction project (MRP)

reflection-probe-bug.zip

[precup]

Confirmed, and it bisects to #100283, CCing @devloglogan for context.