Did not test other versions of the game, only 1.14.2. For some reason, water does not update properly in my creative superflat building world I experiment all my builds on. This happened after I accidentally blew my build up, and then I tried to rebuild it. Strangely, the water did not flow properly.

I can't seem to upload the video (too large) so here is a youtube link to the issue: youtube video

Sorry if the video is a bit bad, my laptop is pretty slow :/