That’s kind of unfair. It’s not like 2.14.6 is superseded by multiple major releases spanning a decade. That version was the latest maybe 6 weeks ago. In any case, you indicated yourself that you would not update 2.15.2, so what do you suggest?
I did the update before I knew 2.15.2 was problematic, and now–in addition to the original problem that still occurs–I have even more issues to deal with. This is why some people avoid hasty upgrades.
Just to confirm this build fixes the timezone but I don’t know about the AM / PM issue. I’ll try and check.
Edit: following the instructions in the OP it looks like the logging build also fixed the AM / PM issue. It works on my Android but my underlying time settings are 24 hour clock but set as AM / PM in Time Input.
if you try to install directly from the dropbox app, it won’t install without any reason. you should open the file manager on the phone, navigate to downloads folder and try to run from there. it is the same on my phone, i do not know why.