In creative mode I put two time frames on a door (on the bottom and top). When I broke the door one item frame broke but the other stayed. The item frame that breaks is based on which part of the door you break. If you break the top block of the door then the item frame on the top will break, (the bottom one stays). The bottom, the bottom one will break.
Thank you for your report!
We're actually already tracking this issue at MCPE-43748, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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