Hi Jesus,
Thank you, but I double checked and I can confirm that I need to have a description or I will get the unparsable error.
Just to recap :
Activity A with a description : I can join both your demo server and mine.
Activity A without a description : I can't join either.
PS : Are the recordings stored directly in the moodle data directory, and is there a way to directly access them ?
PPS : Do you plan to update your VM anytime soon and on which Ubuntu ?