Black screen blinking on iOS with a custom LaunchScreen.storyboard

[astrochili]

Describe the bug (REQUIRED)
Launch screen blinks to the black screen and then fades to the game screen with the ‘clear_color’ background.

To Reproduce (REQUIRED)
Bundle the repro project to iOS device and run.

Expected behavior (REQUIRED)
Launch screen fades to the game screen with the ‘clear_color’ background.

Defold version (REQUIRED):

• Defold 1.2.186

Platforms (REQUIRED):

• Platforms: iOS
• OS: iOS 15
• Device: iPhone 12 mini

Minimal repro case project (OPTIONAL):
ios-launch-screen-black-blink.zip

Workaround (OPTIONAL):
Use the black launch screen only?

Screenshots (OPTIONAL):
https://user-images.githubusercontent.com/4752473/139141693-fe007b56-3d7c-4f97-b408-5ab3a245a8b9.MP4

Additional context (OPTIONAL):
What If we add the backgroundColor with clear_color value to the ViewController.m view? This will indirectly fix the situation if this blink is the black color of the UIWindow, but I don't now exactly what is it.

[astrochili]

Unfortunately, this is not fixed. Tested on both the repro case project and the working project.

Video:
https://user-images.githubusercontent.com/4752473/148652026-277c5095-553e-4581-8d93-aaf71ab502db.MOV

Defold version: