I have called Maximizer support, every bugs they can find after the software is realled is not a bug, this is made in the software.
Ex: On max 9, once you have created a recuring appointment, the recuring can't be modified enymore.
Suppport told me to send a email at firstname.lastname@example.org
So to have it fixed I would have to go on version 10, maby it will be fixed.
Their way to work, is to place bugs here and there into a new version, by placing also new untested features. So they can write on their nex report to actionner: most of users buyed the newer version. Everyone want his software to work properly and to have the next version bugs fixed but they place new one.