OSMD cannot parse musicxml files exported from MuseScore v3.6.2 files

[josephlarralde]

Hi, and first of all thanks for the huge work that has been done here.

I'm actually trying to batch convert the whole dcml_corpora repository to musicxml files
I generate a jobs.json file for MuseScore CLI which is working, but OSMD throws errors (which I should investigate more using a non-minified version of OSMD) when trying to load the resulting musicxml files.
I noticed that this happens only with files that have been converted to MuseScore 3.6.2, older versions load fine (mostly).
So I'm currently spotting the commits for each submodule where mscx files show a version < 3.6.2, to convert an outdated - but compatible with OSMD - repertoire.

I wonder if this has something to do with the introduction of RNA layers, or if it is related to something else in the conversion of old files to v3.6.2.

Does this ring a bell for anybody here ? I couldn't find much info on the internet ... I would love to understand what happens here, and if possible at all "repair" latest files for OSMD.
Or maybe OSMD lacks some musicxml feature, which I'm currently unable to identify, and it would be worth opening an issue there ?

Thanks in advance for any pointers,
Joseph