Time Machine not finding disk after Mac wakes

i'm running mountain lion on macbook , use ubuntu server time machine drive. works , has done few months.

i've upgraded mountain lion via dev program , i'm experiencing issues time machine not there before. i'm curious whether else having these issues too.

sometimes, half time, after waking mac sleep, time machine complains disk cannot found. can force check again , still cannot see it. selecting disk manually prompts 'do want change disk' dialogue box, when selecting disk use.

rebooting mac or reconnecting shared drive using finder works , again. it's bit weird.

yes know software, say, i'm curious whether else having similar thing happen.

 

looks based on can see, build has various issues tm - reviewing threads on over apple forum build.

did submit bug report?

 

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