Why does my Emerald get deleted after E4?!

Question

Does the beating elite 4 before 22 hrs and after 88 hrs thing actually work?

Comments

Whatever this thing about 22 and 88 hours is, it's not true.

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Once my Emerald was randomly deleted, and I just rebooted my ds and the save file was back.

Answer 1

I think its a glitch.
Even my emerald got deleted after the E4.