by Ken Task.
Welcome. One of the returns in attempting to assist others with a problem they have are things others (including myself) might not have been aware and might want to know ...
This:
"I used a tool to migrate activities from the mod_hvp to the mod_h5pactivity one."
Mind sharing back what that tool is?
Others have reported conflicts/issues with old hvp mod installed and then after upgrading to higher version of moodle that mod now part of core.
Was that tool this one:
https://docs.moodle.org/310/en/H5P_migration_tool
Thanks, in advance,
'SoS', Ken