Changing ambient texture doesn't always work

[haestflod]

EDIT:  Issue solved by upgrading from 3.0.7 to 3.1.1

Hi, I'm using an ambientTexture as a lightmap and a user has the ability to toggle between 2 different lightmaps.
I'm currently on babylon 3.0.7 as I havn't been able to update to 3.1.1 yet.

What happens is that it works for the majority of the meshes & materials.
However for some meshes they don't always correctly apply the ambient texture greyscale multiplier.
I've tried the following 3 functions:
 

material.unfreeze();
material.markDirty();
material.markAsDirty( BABYLON.Material.TextureDirtyFlag );

If I use the code below some seconds afterwards manually it sometimes works properly and sometimes it doesn't.
 

scene.materials.forEach( (material) => { material.markAsDirty( BABYLON.Material.TextureDirtyFlag ) } );

Is there anything else I can do to trigger the material to update?

The babylon.js file is exported with the old unity exporter.
The StandardMaterial's diffuse texture has alpha enabled

 

[haestflod]

I noticed if I wasn''t looking at the meshes they would be correctly updated, so if I do a 360 camera spin and then markAsDirty() the ambient texture value is properly applied

 

[GameMonetize]

Hello as I see you are playing with freezing materials which could be tricky (and no more required in 3.1 :))

Would you mind trying to repro the issue on the playground? It's gonna be far easier for me to help