After update to Unity 2020LTS MeshFilters lose Mesh reference in build

[Unity 2020.3.17; Addressables 1.18.15]

After upgrading from Unity 2019LTS in some Scenes the MeshFilters do not contain a Mesh reference in the build or when using play mode “use existing” in the editor. But when I open the scene in the editor all the references are there.

Marking the meshes as addressable, even though they are only referenced once, did not help.

Can someone help me solve this?

edit: when I use “use existing” mode in the editor, all the objects in the said scenes lose their static flags. Could that be the reason references are lost?

Hey there! If you haven’t yet, please file a bug report and our QA team will have a look!

Hi,

I “fixed” this by adding a monobehaviour script that holds a reference to the mesh to the objects who had issues and it works fine now.

This has been happening randomly on iOS for us too