1.- I really don't see the point of exporting Moodle questions to the Aiken format.
2.- Anyway, I confirm that it will not work for MULTIPLE CHOICE-MULTIPLE ANSWERS questions. See MDL-21904.
En effet, "un même symptôme pour des raisons différentes".
Vu ces problèmes récurrents Il faudrait quand même s'interroger sur la fiabilité (?) du plugin H5P dans Moodle, aussi bien le plugin "contribué" que celui qui fait maintenant partie du "core" de Moodle. Ça ne me parait pas normal d'avoir à faire tous ces bidouillages pour résoudre ce problème récurrent de blocage au chargement.
I've just noticed this display bug, which has probably existed and gone un-noticed for a number of years.
Moodle 310 latest. Default theme. Tested on my Moodle test sites and also on the Mount Orange Moodle Test site.
Question type: most of the usual ones. Tested with GapFill and MULTIPLE CHOICE.
Question behaviour: Adaptive.
<div class="im-feedback"><div class="correctness badge incorrect">Incorrect</div>
This div adds a red background colour to the "Correct"/"Incorrect" words, making them almost illegible, as per attached screenshot.

If the text color were set to something like white, that div would be more legible, as per below:

PS.- Tim will probably say it's a feature, not a bug.