[Mobile/Tablet] Major game crashing, possible memory leak

[Malcom-Nubbins]

Issue:
At random points during the game, it will outright crash back to the devices home screen. Sometimes, it won't provide a dialogue box to say the game has stopped responding, and will just display a black screen and quit out of the game. A likely reason might be a memory leak somewhere, as the home screen would redraw (reload, a common thing when the device is running low on available memory).

Occurrence rate:
Around 60-70% of the time. Mostly seems to happen when the game is left running for a long period of time.

Steps to reproduce:

1. Open the game and play as normal.
2. After an amount of time playing, or just idling on one of the screens, the game should eventually crash.

Devices:
HTC Nexus 9 (Android Version 6.0.1, Marshmallow)