Thanks for sticking with us, Mars. I'm sure this is at least as frustrating on your end as it is ours.
I followed the directions. Connected to Kongregate (I was already, actually). Manually saved. Uninstalled. Reinstalled. ... AND, no change; still no way to "finalize" the share.
Game ID: Mn5H3_sEp
Phone: Pixel 1
OS: Android 8.0.0
Pocket Plants Version 2.4.14