Thanks, exporting force_glsl_extensions_warn=true does fix the rendering of tropics! Should I close the report or is it considered a temporary workaround? As a side note, exporting MESA_EXTENSION_OVERRIDE=-GL_ARB_shader_bit_encoding does not change anything for me in heaven 3.0. It has always been rendering correctly, so the override does not fix anything, or maybe I never stumbled upon the missing parts I am supposed to see...