To reproduce:
1. Open attached project
2. Build and run to Android device with the development build
3. From project folder copy OBB file to Android OBB folder
4. Open profiler and make few times application go in the background and back

Actual result: Total memory increases every time the application is back from the background
Expected result: Total memory should not increase every time application is back from the background

Reproduced with: 2017.4.35f1; 2020.1.0a18

Tested and reproduced with:
VLNQA00290, Samsung Galaxy S10 5G (SM-G977U), Android 9, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00099, Google Pixel XL (Pixel XL), Android 9, CPU: Snapdragon 821 MSM8996 Pro, GPU: Adreno (TM) 530
VLNQA00121, Samsung Galaxy S9 (SM-G960F), Android 9, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00285, Samsung Galaxy J4 Core (SM-J410F), Android 8.1.0, CPU: NOT FOUND, GPU: Adreno (TM) 308
VLNQA00110, Samsung Galaxy Note2 (GT-N7100), Android 4.4.2, CPU: Exynos 4 Quad 4412, GPU: Mali-400 MP

Note: Logcat attached
Without OBB file the memory does not increase
Memory increases 2 MB every time the application is back from the background