Windows Script Steps not pasting into scripts

Hello,

I am running FileMaker Pro 22.0.4.406 on Windows 11.
The BaseElements and MBS plugins are installed in the Extensions directory and are correctly detected in the Plug-ins preferences. The MBS license is properly registered.

I can successfully interact with fmVibeX. When fmVibeX generates scripts, it offers COPY options in Text or FMXML formats.

However, when opening the FileMaker Script Workspace and placing the cursor within a script to add steps, I am unable to paste any content, regardless of the chosen copy format (Text or FMXML).

When I copy as FMXml, it processes for a few seconds and then indicates completion with a small check mark.
However, I am unable to paste the result anywhere.
Even if I define a text variable in a script and try to paste the clipboard contents, nothing happens.

This suggests there is a conceptual or technical limitation I am missing regarding how.

Many thanks for your help