This keeps happening tome.
I am currently running V2.6.0-1.0.1 on my LV08
After 2 hours of uptime it suddenly drops hashing like this:

https://imgur.com/a/ouHjJIm

It averaged 5Th/s using 600Mhz at 1205 mV averaging 24.5J/TH for nearly 2 hours and suddenly it drops to 3.1th/s
It did not overheat: 55C asic temp


I was pushing this same hardware with the original LuckyMiner OS to 650/1260 and it averaged 5.35Th/s

Any suggestions ?