Jumping Vinyl Mode

Hello Team,
last week I had a party and used there two different decks. One Deck was with two turntables and one with CDs. I had two laptops with two U46 so this can't happen at switching from Vinyl to CD. (two DJ with different decks
)
So the problem. Both decks where running in relative Mode with turntables. After a few hours I loaded a track in deck 1 and suddenly the deck 2 was jumping to the real position at the vinyl.
This happens on both systems with CDs and also the turntables.
I read today in a thread that I have not only this problem.
To the specs of my hardware:
Laptop: Fujitsu Lifebook E780 Professional (i5 2,4GHz, Win 7 Prof. x64 - 4GB Ram)
U46MK2 Soundinterface
one Midi-controller connected: Akai LPD-8
Timecode CDs and Vinyl and also neadle where totaly new.
I tested it today on my system again with MixVibes 7.218. I can reproduce it after a hour and then setting the neadle to the first line of the vinyl. Then deck 2 is jumping to the real position. (maybe thinking neadle drop was so it jumpes to the current position????)
Now I will test it also with MixVibes 7.4 RC if it happens there too.
Here is also the link to the thread of the other user:
viewtopic.php?f=268&t=20371
regards
Christian
last week I had a party and used there two different decks. One Deck was with two turntables and one with CDs. I had two laptops with two U46 so this can't happen at switching from Vinyl to CD. (two DJ with different decks

So the problem. Both decks where running in relative Mode with turntables. After a few hours I loaded a track in deck 1 and suddenly the deck 2 was jumping to the real position at the vinyl.
This happens on both systems with CDs and also the turntables.
I read today in a thread that I have not only this problem.
To the specs of my hardware:
Laptop: Fujitsu Lifebook E780 Professional (i5 2,4GHz, Win 7 Prof. x64 - 4GB Ram)
U46MK2 Soundinterface
one Midi-controller connected: Akai LPD-8
Timecode CDs and Vinyl and also neadle where totaly new.
I tested it today on my system again with MixVibes 7.218. I can reproduce it after a hour and then setting the neadle to the first line of the vinyl. Then deck 2 is jumping to the real position. (maybe thinking neadle drop was so it jumpes to the current position????)
Now I will test it also with MixVibes 7.4 RC if it happens there too.
Here is also the link to the thread of the other user:
viewtopic.php?f=268&t=20371
regards
Christian