MCPE sticky pistons create ghost pistons after time

In creative. Currently in Realms. After time sticky pistons in two areas stop working. You can break an invisible block in front of the sticky piston & it works again.
I have tried all kinds of solutions including re-building & the sticky pistons function for a little while. Sticky pistons with the exact configuration nearby do not have the bug.
It seems to create a ghost block.

One configuration is 3 vertically stacked to open "a door". The opposing 3 stacked Pistons always work. All three of the buggy pistons create the ghost block. They are activated by stone pressure plates. Either pressure plate activates all 6 pistons opening the "door". 3 pistons always work, 3 stop working after leaving Realms for a little while.