Bounty missions disappearing

Kabam, and community. My alliance has come across an issue specifically in the last week where a bounty mission starts, and someone (whether myself or someone else) completes a difficulty and all is well. Then upon logging back on, playing another mode etc the bounty mission is then gone, someone has to restart and at which point, one would have to go in again and redo the event. Well within 8 hours; typically this error happens in the first 1 or 2 - or not at all.

What gives? Anyone else experiencing this?

Thank you