I have the same problem.
After I put the code under the text block, it just shows MusicSheetViewerPlugin 2.4
and nothing else.
Can you check it? https://promusicians.net/product/feel-it-still/
PS. I tried to switch off all plugins but it also didn’t work.
yes, I want to put it inside the widget instead of thumbnails
I can see it in product page and in archive(catalog) page, but not in the widget
