Razer Naga Trinity sensitivity issue

Hey, I'm having problem with my mouse sensitivity randomly going up to not usable level.

When I start my PC the sensitivity is fine. I have noticed the problem occurs when I'm not using mouse for some time (watching some video or just afk for some time). When I start using it again, the sensitivity has at least doubled. Then I usually start up Synapse and that gets the sensitivity back to normal. But the same problem can come up again, even when Synapse is running on the background. In this case I go to Synapse mouse performance tab and either switch sensitivity from my normal stage to some other and back to my normal or just use the slider to change the sensitivity. My normal DPI is set to 1650 and when it ramps up, I'd say it goes to around 6000 DPI. I'm using Manticor mouse pad. Drivers and Synapse are up to date.
I do not have any macros or what ever set up to change the sensitivity.

Best regards