Cube Viewer do not show all hierarchies


I’m on 2020.11 FP1. I have a problem with Cube Viewer which will be hard to replicate. One of the hierarchies on the Material dimension is not shown as available to use in the viewer. I can save a view in Arc with this particular hierarchy as a filter, row or column and it will work, but as soon as I put it in the area above filters and press save in UX it disappear from the selection and cannot be used anymore. Did anyone experience something similar?

Are there spaces or any funny characters in the hierarchy name?

Spaces yes, funny characters no. But there are others with spaces that works perfectly.