End Portal Texture stretched if located at large X or Y coordinate

Update by rplatham:
Confirmed on Samsung Galaxy S4 SGH-I337M Android 5.0.1, MCPE 1.0.0.7.

Steps to Reproduce: Create new creative flat single player world, using tp command to move to these coordinates, build end portals and observe as follows:

• 254,6,0 (end portal has stretched pixels in N/S direction)
• 0,6,254 (end portal has stretched pixels in E/W direction)
• 0,254,0 (end porta is fine, no stretched pixels)

This bug does not affect my Samsung Galaxy S6 SM-G920W8 Android 6.0.1 (consensus seems to be that this bug does not affect Android 6)

Original Report:

The end portal texture is really weird.

Device: DL Tablet 3405
PS: It has a Intel Atom processor.