# Omniverse Create Material Loading issue

**URL:** <https://forums.developer.nvidia.com/t/omniverse-create-material-loading-issue/257151>\
**Category:** Samples & Examples\
**Created:** [June 19, 2023, 12:46pm UTC](https://forums.developer.nvidia.com/t/omniverse-create-material-loading-issue/257151 "2023-06-19T12:46:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Ryan\_Gatt](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@Ryan\_Gatt](https://forums.developer.nvidia.com/u/Ryan_Gatt)\
**Post date:** [June 19, 2023, 12:46pm UTC](https://forums.developer.nvidia.com/t/omniverse-create-material-loading-issue/257151/1 "2023-06-19T12:46:52Z")

</div>

Hi all,

So I’m getting the following message in the console:

**2023-06-19 12:42:36 [Error] [omni.hydra] Failed to create MDL shade node for prim ‘/World/Looks/Ceramic\_Tiles\_Subway\_Antique\_White\_Dirty\_02/Shader’. Unsupported identifiers.**

This happened all of a sudden, out of the blue. Materials were loading fine, and the next second, not. I also tried to export the MDL and re-apply the exported MDL but it seems that there are issues with exporting the MDL too.

Is there a fix for this issue please?

Thanks in advance!