Background agent

Hi,

I worked with background agent for a day, everything was going well till I needed to step away from my computer and when I came back I see background agent is archived and when I try to open it, I get this message:

I spend quite a lot of money running that agent with quite lot of inputs and all work seems to be gone. Is this how it works or what is happening? I know it is preview version, but losing all the work and money feels not good.