Hi,
I stumbled upon something interesting while soloing a Grift.
Short story:
I had an all to high Keystone (rank 26) left from another game and thought I might as well just let the timer run out and kill the rift guardian when he spawns, I did this because it was too tough for me. So I had 0% progress complete when the timer hit 15mins, now what happens next is that the timer runs out and it says "times up". But the Rift Guardian did not spawn as it used too when the time runs out. So now I HAVE to fight my way to 100% progress to get the guardian to spawn.
I have no idea if this is an useable exploit or not, but i thought I wanted to share.
- Sebs
EDIT: Could someone confirm/disprove this? It could also just've been some bug.
EDIT2 - Sorry just please remove this thread. :-)