@jshiells i believe this is by design for a mirror backup. it checks every vm to mirror (if no filter is selected that will be all on the SR), if there is no new recovery point it will not copy anything as it allready does have the latest version of that backup on the destination recovery point. When a filter is selected it checks every vm on the sr but it does not copy data.

I have, what is hopefully a final update to this issue(s). we upgraded to xoa version .99 a few weeks ago and the problem has now gone away. we suspect that some changes were made for timeouts in xoa that have resolved this , and a few other related problems.

@jshiells Why don't you open a support ticket and allow us to take a look at this for you?

@Bastien-Nollet Thank you, great explanation!