Hi Fellippe,
Still can't find an objective reason why InForm isn't running with Debian 8 and 9 when it runs nicely with Q4OS that is a fork of Debian 9.
I'm clueless!
However, may I suggest the following "work arround":
- When InForm is started, test the Linux release it is called from (command line: lsb_release -sc), and if it's a Debian 8 or 9 distro (response "jessy" for Debian 8 and "stretch" for Debian 9), select your previous communication protocol used with the Beta 7.
It's only a "temporary work arround" to give you time to check what is wrong with this main Linux distro.
What do you think ?
Cheers.
Fifi