Chime SDK crashes when enable background blur on preview screen

[georgezy-amzn]

Describe the bug When background blur is enabled on preview screen, the SDK will crash with 3 ways:

• it will crash in ~4 seconds if stay on preview screen (on some specific devices)
• it will crash if press back button on preview scree (with demo app)
• it will crash if move the app to background, then back to foreground

To Reproduce Steps to reproduce the behavior: For scenario 1:

• Start the meeting, stay on preview screen, make sure the background blur is enabled
• Will crash in ~4 seconds

For scenario 2:

• Start the meeting, , make sure the background blur is enabled on preview screen
• Press back button
• The app will crash

For scenario 3:

• Start the meeting, , make sure the background blur is enabled on preview screen
• Move the app to background, then back to foreground
• The app will crash

Expected behavior The SDK should not crash when background blur is enabled on preview screen

Logs If applicable, add logs from logcat to help explain your problem.

Screenshots If applicable, add screenshots to help explain your problem.

Test environment Info (please complete the following information):

• Device: [e.g. Pixel3]
• OS: [e.g. Android 10]
• Version amazon-chime-sdk: [e.g. 0.4.0]
• Version amazon-chime-sdk-media: [e.g. 0.4.0]
• Can you reproduce this in the demo app? If you are reporting a crash:
• How often is this crash occurring?
• Are there metrics on CPU or memory use at the time of the crash?
• Please provide full crash logs.

Additional context Add any other context about the problem here.

[georgezy-amzn]

A fix has been applied, pending release.