I created families with shared parameters, these parameters have been grouped into "IFC parameters", I created the BIM model project with these families.

when I export the bim model in IFC format the shared parameters (grouped in IFC parameters) are not there. If I create the same shared parameters (in other groups, for example data group) in the IFC model they are present.

I have tried various exports, with various configurations and various property sets, but I am unable to export these shared parameters.

I don't want to recreate all these parameters (there are many), why is it not possible to export the shared parameters grouped in "IFC parameters" to IFC? How can I do?