[Appointments+] Appointments + ignores padding after update

After updating Appointments + it seems to ignore padding.
I offer 90 minute services which by adding 30 minutes of padding used to create a schedule with 2 hour brackets.
After the update it changed to 90 minute brackets.

I have "patched" the issue by changing the service times to two hours but would prefer a clean solution that is not misleading to customers.

The padding Add-on seems to be doing something though. If you add some ammount of padding, the following appointment slots can become unavailable.