Android crash soon after launch, "Assertion Failed" in log

When I launch my game from the UE4 project launcher (with “By the Book”, “Development” and Android_ETC1 set), the game runs on my Android tablet for about a second. I can see the map and the main character for a brief moment.

Then the game silently crashes with no error popup on the Android device. After looking at my logcat I see the following messages.

09-25 14:00:30.332: D/UE4(4081): [2015.09.25-21.00.30:332][ 0]LogInit:
09-25 14:00:30.333: D/UE4(4081):
[2015.09.25-21.00.30:333][ 0]LogInit:
Branch Name: ++depot+UE4-Releases+4.9
09-25 14:00:30.498: D/UE4(4081):
APIServer =
AppVersion =
4.9.1-2689999+++depot+UE4-Releases+4.9 09-25 14:00:33.259: D/UE4(4081):
Assertion failed:
ClearValue.ColorBinding ==
[Line: 1842] 09-25 14:00:33.259:
0]Assertion failed: Assertion failed:
ClearValue.ColorBinding ==
[Line: 1842]

The main error appears to be “Assertion failed: ClearValue.ColorBinding == EClearBinding::EColorBound” What does this mean and what can I do to fix it?

My game is Blueprint-only, and I am using the official 4.9.1 binary, not source.
I should note that my game has run on this tablet before. So it’s not a problem of the tablet not being compatible with UE4 games.

Hey Pvalencia,

Could you please upload your full logcat files from your mobile device? Have you tried upgrading to 4.9.2 and seeing whether or not you’re able to launch your game on your device? What type of device are you on, which version of android is your device updated to?

Looking forward to hearing back from you, thanks!

Hey Pvalencia,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!

Did you solve this? If so, how?