Water stops flowing even when directed as shown in the attached. Basically anything that uses water to move mobs/items is broken. Blackstone is shown in the photo, but I've tried glass and stone as well.
Sometimes it can be fixed by flying to unloaded chunks then flying back (for every bucket placed).
Thank you for your report!
We're actually already tracking this issue at MCPE-36463, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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