Regression of MCPE-21523. Not sure when this issue returned.
Original description
Steps to reproduce:
Place a redstone block.
Place a wooden or iron trapdoor adjacent to the redstone block.
Notice that the trapdoor does not open like it should since it is being powered.
Giving the trapdoor a block update will not cause it to open, due to the way redstone works in Bedrock Codebase. Not even powering it with another power source will work, since it is already technically powered. You have to disable/remove the redstone block and then place it again to make the trapdoor open. This is especially a problem with iron trapdoors, which can't be opened/closed by hand.
Affects 1.16.200 | multiple
Legacy: 1.16.40