This test project contains a plane with a webcam texture attached to it, and a button to tear it down and then 5 seconds later reinitialize it. Repro steps:

1. Open attached project
2. Build to UWP (I used debug/IL2CPP build)
3. Run on local or remote machine (I ran on local PC as x64 app)
4. Observe that as you click the button the app memory usage keeps increasing (it's shown on the screen). Don't press the button multiple times without waiting for it reload as the test script doesn't handle that gracefully.