Thank you for your contribution in reporting these bugs.
1) The gym script that triggers events with Mary and Jennifer is not working on the v 0.20, with was working in 0.19.1. It is fixed in version v 0.21 that will be available 05/09.
2) There was a button wrote: "Jennifer Help" that was skipping the quest in the bio lab to almost its end, it was fixed in this version.
The Quest with Ai can't start with this bug, You can "cheat" to return to the quest part that you were, opening the Database.Xml with a Wordpad and changing the value of "questChapter".
If you have completed that quest of the research, your questChapter value will be 8.
<questID>4</questID>
<questName>Bio Lab Research</questName>
<questChapter>8</questChapter>
If you put value 0, in the questChapter the quest will start in the first part that you visit Samantha in the bio lab.
make a backup of your save before editing the file, if you remove a line of the save, one "<", or put letters in the wrong place it can make your game unable to load your saved files.
3)I forgot to put a warning that the quest ends for now in that part, I put a warning in v 0.21.
4) The UI need a lot of work, There is a lot of things that I think need to change. Are you playing the android version?
is here where UI is not showing the item properly?
There is 80 itens in both sides and i could drag till the end without problems.