Dictaction - result.success in xAPI statement is always false

xAPI statement example:

actor: {...}
verb: {id: "", display: {…}}
object: {...}
context: {...}
score: {min: 0, max: 14, raw: 14, scaled: 1}
completion: true
success: false

Even if result.scale.scaled is 1 the result success is false.

The 'Behavioural settings' in editor have no impact.

Remove old content types from Moodle

Hello there, I was wondering if any of you knew how to remove content types previously installed in Moodle.

I haven't found any option to do so from Moodle itself, and I was wondering whether it could be done from the server or someplace else.

The question arose when one of my teachers noted that some of the content types we have are not listed here anymore:

Does that mean that they won't work properly anymore?