I was looking for a flying machine for my world and I tested out a couple of designs and noticed that none of them worked. I was confused at first but then I realized why. Pistons/Observers donโt have a set order to fire so the vertical flying machine sometimes goes up and sometimes goes down, seemingly at random. This completely breaks all flying machines and redstone if things have a random order of firing.
Thank you for your report!
We're actually already tracking this issue in MCPE-16371, so I've resolved and linked this ticket as a duplicate. That ticket has already been resolved, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
In Bedrock Edition, Redstone components that activate in the same tick will activate in random order. You will need to look for Bedrock-specific flying machine designs, as many designs that work on Java Edition will not work on Bedrock Edition.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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