Level Dimension not registering a dimension

[Rene Pahlavan]

Having a strange issue of the Level Dimension not dimensioning to Sea Level on a mesh. Two meshes next to each other - one shows properly, the other shows #toPZvalue (even though the setting is to Single-Value Visible Top to Sea Level and Gravity to Mesh is turned on - screenshots attached). Does anyone know why the to Sea Level dimension is working on one mesh as it is supposed to, but not the one beside it?

Operating system used: Mac Apple Silicon 14.5 Sonoma

  

[Barry Kelly]

Do the meshes appear similar in 3D?

Barry.

[Lingwisyer]

It is not associated with the mesh? It can become disassociated if you accidentally move the reference node.

Ling.

[Rene Pahlavan]

Yes, other than their thickness, the meshes are identical. 

[Rene Pahlavan]

No, I have not accidentally moved the reference node; and I have tried to add level dimensions all over the mesh - they all show this result even though gravitate to mesh is on. (the level dimension tool operates correctly on all other meshes and slabs in the view).