This has been happening from my knowledge, since 1.17, fences, walls, glow lichen and more when made as a structure or for a world, it glitches where the certain block in question does not update, and faces the direction it was told originally
It should update when loaded into the world, so that it doesn’t glitch thoose blocks
Please do not duplicate your previous reports (MCPE-134260). If you have more information you can add it to that report.