Trailforks map problem already unlocked

Hello everyone,
I just bought a 1030 plus and I can't activate the trailforks map like on my 830. I installed the application from Connect IQ, then I connected it with my trailforks account. When I do "Unlock the map" in the IQ menu of the Edge, it tells me "The map is already unlocked".
I specify that I am in version 6.75 on the 1030plus. I read on a previous post that it was a bug that had been fixed by Garmin. But this problem is still there ... What to do? I tried with a new trailforks account, the problem persists ...