Grimtern glitch?

I have recently started my sim down the grimtern career path, and it seems I'm getting kicked off the workday? 

So I get sent to collect a soul, I go about the usual route the last thing I get done is the 'get to know witness' task and when that is done the 'return to office' option is gone. I cant travel because I'm in work, so I am just stuck there until end of work day.

I restarted my game and went through it all again and no matter when I do the 'get to know witness' task the office option disappears immediately. I can finish the other tasks after, the little workday list ticks away and then I'm stuck. 

I have started skipping that task and there are no issues so it is definitely the 'get to know witness' task that is the issue.

Is there something I am doing wrong? Or is there a different way to get back to the office ?