When you open the “Minecraft” app the skin always resets to default(Steve or Alex). You have to enter the skin selector in order to set your skin in the one you wanted.
Another report has been made but there it states that the bug is Resolved
MCPE-49232
When opening Minecraft, the skin resets to “Steve” or “Alex”
Resolved
Duplicate
0
JimmyThePhantom
(Unassigned)
Unconfirmed
iOS
IOS 12.3.1
1.12.0
Retrieved
Thank you for your report!
We're actually already tracking this issue at MCPE-32089, so we will resolve and link this ticket as a duplicate.
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