[Error] B4W ERROR: Shader compilation/linking error: main.glslv, main_stack.glslf, materials: "DEFAULT"
d (output.5e52a835b47f.js:1:1026)
Q (output.5e52a835b47f.js:29:288)
ia (output.5e52a835b47f.js:14:1625)
(función anónima) (output.5e52a835b47f.js:16:470)
(función anónima) (output.5e52a835b47f.js:65:1694)
a (output.5e52a835b47f.js:94:1050)
(función anónima) (output.5e52a835b47f.js:94:2760)
(función anónima) (output.5e52a835b47f.js:65:1526)
aa (output.5e52a835b47f.js:87:888)

iPadOS and iOS Safari 15.1 has same issues , we are looking for a solution too

iPadOS and iOS Safari 15.0 has same issues. Errors:
B4W ERROR: Shader compilation/linking error: skybox.glslv, tex_skybox.glslf, materials: ""
WebGL: INVALID_OPERATION: useProgram: program not valid

Should we wait till them solve the problem with an update ?