I know that MCPE does not support TPs yet.
But it would be cool if we can atleast add them with file editors without Bugs.
So heres a list of Bugs that the creator of PoBDCraft made(under All "bugs" section):
http://bdcraft.net/community/pobdc-discuss/some-information-about-pobdc-t3460.html
Most of them are still persistent in 0.10.
Since Apple removed iPhone Config Utility Tool I cant test which are still persistent and which are not.
But I know that 1, 4, 5 and 9 are still there
Other than making an issue for every Texture Bug I decided to make one.
You can test on Android or jailbroken iDevice.
Modifications that are made outside of the game are not supported.