Is there an equivalent for the French "Bonaldi effect" in English?

In France, we designate by "Bonaldi effect" a particular case of the Murphy's law which states that:

Any demonstration of any product that worked perfectly at the rehearsals will fail miserably during the public demonstration.

It takes its name from Jérôme Bonaldi, a television host who encountered many problems when he presented unusual objects and inventions.

How would you describe such a syndrome in English?

Solution 1:

Urban dictionary suggests an appropriate term: demo effect.

Its downside term is that is typically connected with high-tech, and it has other meanings.

From another source:

Similar to [the bonaldi effect], the demo effect: an object, software, etc., used daily with no incident, would present a dysfunction during a demonstration, especially in public. exemple [sic] : bill gates' presentations of different windows, ending with a famous error on a blue screen.