I'll try and double check the logs on the working machine tomorrow but I believe those errors did exist on that as well as I was looking in the console...
I've just swapped out my internal disk that was used for Time machine and installed a new replacement hence have also done a shutdown and then for good measure another restart.
Having selected the new disk Time Machine is currently doing the first backup but it may take a day or so as there is about 4.5TB to do....
Will update here if I find anything, I'm assuming none of the problem machines have a recent fresh install of OS X, i.e all have been upgraded from older releases?
I've just swapped out my internal disk that was used for Time machine and installed a new replacement hence have also done a shutdown and then for good measure another restart.
Having selected the new disk Time Machine is currently doing the first backup but it may take a day or so as there is about 4.5TB to do....
Will update here if I find anything, I'm assuming none of the problem machines have a recent fresh install of OS X, i.e all have been upgraded from older releases?