My M6-ver2.003.2-4G Ogg file playing problem

After using my M6 for the first 9 days, I tried playing some ogg files on it for the first time yesterday. The headache is, everytime I press pause when an ogg file is being played and then wait the player to be off automatically, it seems off as expected, but after that I can't turn it on by simply pressing the power button. I have to reset the M6 to be able to turn it on again.
This happens everytime I do so. There is no problem with mp3 files. Wma, wavs not tested yet.
Have somebody else meet this?
Sorry for my poor English.

Hi liushie and welcome to the forum. I am using .ogg for a while but I have to admit that I never paused and let it turn off .. checking it now and giving you a feedback on it.

Edit : okay, I let it turn off automatically. Turned on again like a charm. So it seems not to be a general problem, I have the same firmware as you (on a 8GB SP MeizuM6). Maybe something special with your oggs ? I have used oggdrop.

I don't experience any problems either, same firmware. I use Vorbis aoTuV BETA 5 through oggenc.

Thank you, BobbyQ and mfb!
The strange thing is still there.
I have used the latest ogg encoder from rarewares.org and Vorbis aoTuV BETA 5(from its official site), which was mentioned by mfb. I've also tried the latest beta firmware.
I won't waste any time on this any more. "Luckily" its not a crucial problem.