Stella’s lab vanishing before event finished

Hi all,

I’ve experienced the same glitch twice now, on separate occasions. I had the Stella’s Lab event appear in my game yesterday and started to play it. I went back to the game later that day, but it had vanished - before I had finished it and before the time had run out on the event.

Has anyone else had this problem and know how to access current in-game events if they vanish from the left-hand side of the map screen?

Thanks in advance,

Zoe