Mesh feature definitions not connecting to surface feature symbologies

Hi,

I am creating huge datasets in excel for defining interconnected  element templates, feature symbologies and feature definitions.

I am using OpenRail migration tool, Features_ImportExport_Excel app, Civil_ElementTemplate_Utility app and OpenRail Designer CE - 2022 Release 1.

I managed to set it up correctly for point and linear feature definitions, feature definitions link correctly to its feature symbologies and feature symbologies link correctly to its default element templates.

The problem comes up when I am defining surface feature symbologies for mesh feature definitions, when I import both to OpenRails the definitions fail to locate symbologies, but no error comes up. Usually, when the path was incorrect I would get an error message in my Message center, but in this case I am getting no error message. I suspect the mistake is somewhere else than in the paths defining location of feature symbology, but i have no idea where is the error. Here is example of naming and paths i used:

FD name: Centreline_COWI_DK_Rail

FD path: Components\Railway\Catenary\Unspecified

FD link to FS: Surface\Modeling\Components\Railway\Catenary\Unspecified\Centreline_COWI_DK_Rail

FS name: Centreline_COWI_DK_Rail 

FS path: Modeling\Components\Railway\Catenary\Unspecified (placed in Surface sheet, thus automatically adding "Surface\" before the path)

Additionally, I am getting an error message when loading symbologies, but everything works as intended, until I load definitions. (error message enclosed)

Has someone experienced something similar or do you see a an error which I missed?

Possible errors which I checked: formulas instead of values in excel, spelling mistakes, incorrect placement in columns in excel, wrong headings

Thank you for any response,

Best regards,

Filip Jeník