Yes, sorry about that. Both the 5.50 version and the workaround work for the first mentioned problem which is counting people as reservations.
But now we face a different issue, in one of the languages, although counting people as reservations correctly, i can still book more than the maximum slots availability.
As you can see in the screenshot the available slots are 10, and I'm able to put 12 and continue the reservation.
If you want i can try to reproduce this in the sandbox
Hello,
My name is Carlos and I will continue working on this ticket
I have reproduced the issue and applied the workaround described in the erratum page, but the issue persists, and the calendar is not loading the available dates in EU. I have escalated this ticket to our 2nd tier of support so our specialists can take a deeper look at this issue.
I'll get back to you as soon as I get more information.