Mesh setup error key not found in the dictionary

[Ante]

Hi all,
New user here.

I have 2 beams that i want to thick shell mesh.
When I try to go to the mesh setup and select the parts and get it to run I get:
“The given key ‘part name’ was not present in the dictionary”

I saw in some other post with similar setup that this is maybe a known bug and it will be patched

[Matej]

I cannot reproduce the problem. Can you share the file or a simple example that has the same problem?