I just received the 80d 2 weeks ago and it appears I already have an issue. The automatic flash pops up when taking pics in low light, but doesn't fire correctly and sometimes not at all. The 1st time I used it for Christmas lights with my family and it was fine. The 2nd time I was inside and the flash would pop up and fire, but it was premature. The flash would fire too early resulting in the appearance of no flash at all. Now, it pops up but doesn't fire at all. This is a brand new camera less than 2 weeks old. Is there anything I can try to resolve this prior to sending it to canon?