93cdea62f6
This seems like an out of memory issue where the storage buffer could not be allocated but still used as a destination for a copy. After an out of memory issue memory can be fragmented and any allocation can still fail. On `AMD Radeon(TM) 890M Graphics Advanced Micro Devices AMD` `24.30.58` I got to multires subdivision level 2+6 using the steps described in the report. 2+7 is failing for me. 2+6 already requires 16GB of memory using large chunks. OpenGL and Vulkan work with other limits and memory models and can have different behavior. This PR only improves the mentioned issue, but can still fail in other areas. Pull Request: https://projects.blender.org/blender/blender/pulls/147713
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