1.21.1 Invisible with Iris shaders active

[ikol23]

What
When shaders are on or active, all blocks and entities turn invisible. Other gameplay elements such as clouds or the sun and moon, or the GUI, work just fine. This problem does not occur when shaders are disabled or turned off.

Reproduction
Install mod with Iris Shaders installed. Load into any world. Activate any shader.

Screenshots

Please give the following:

latest.log

• NVIDIA GeForce GTX 950 - Driver Version 560.94

[hoshinolina]

I had this with 1.21.8, but it was fixed by disabling and re-enabling the shader. It also only happened when I set scale to 0.5, not the default 1.0.

Hardware: Apple M2 Max (G14C B1) with OpenGL 4.6 (Core Profile) Mesa 25.2.0 (Linux)