Well, I don't have a game with 100k or more... One have less, a lot less downloads on google play. But the game we are finishing now works on more than 60% of our target devices - Android 4.1 and higher. We have only an issue with one device so far - Lava Iris 455 (Android 4.1.1) - game is loading and visible in the background but after about a second screen turns black and nothing works. Rest of our test devices works just fine. And I'm using quite a few third party plugins, IAP, Ads, a lot of sprite, sprite fonts, tilemaps, arrays, dictionaries, families and more. No issues here with CW.
If something is not working for you then there's a reason for investigation, why it's not working.