Hey man the timer thing is working I just rebooted my phone and .5, 1s and 3s time interval works.You're welcome!
Yes, those are time intervals that define how long does it take to start taking the screenshot since you long click the QS Tile, I made it like that because without any delay, sometimes, the screenshot started in the middle of the QS hide animation.
500ms were enough in my tests but decided to add extra steps just to practice and left them as a feature. If there is no change for you, then it's a bug. If you want, take a logcat while you take screenshots with different time intervals and sent it here as attachment and I'll check it.
Thanks again!