Cross DJ 4 not starting anymore

[Hanginon]

Are they still developing the software for DJs or they gave up already and everyone will have to move to other softwares more reliable ?

REAL GOOD QUESTION!!

However, why beat yourself up trying to get V4.2 to work?
V3.4.3 works great! Just consider whatever money you spent on V4's License AS A GIFT to Mixvibes to keep them in business!!

[RoJeC]

Can understand the message of Hanginon. V4 is a few steps in the wrong direction.

Aside from that being said your license is pretty hard. You're the only user reporting this and even you are surprised by the different states you get when using it. Only certainty there seems to be is that it goes through these states repeatedly.

As you seem to be the only one a reinstall of v4 might be a thing to do. This should include cleaning activities before reinstall.
So
- uninstall Cross 4.x (all v4 versions if you have multiple installed)
- MANUALLY remove the mixvibes.settings file
in C:\Users\[username]\AppData\Roaming\Mixvibes\Cross DJ Pro\..

reboot PC.
Run a cleaner like ccleaner (registry clean only)
just to be sure : reboot after this

Install Cross
start.. fill license... and lucky (or rather normal) enjoy