Sprite not showing on android

i have a project in Unreal 4.10 ( 2D sprite game) then i update to unreal 4.15, remade the project and now, do not works in my phone, before update the unreal , work just fine, and now the sprites it doesnt show, even the main menu and the levels dost not works. what information can i give to you so you can help me?

Hey manul00,

So whenever you upgrade an engine version, especially in your case, you typically do not want to have such a large gap in between versions. Is there a reason you needed to upgrade your project? Good development practice dictates that unless it is absolutely necessary to upgrade your project, you do not do so in the middle or end of your development cycle for the reasons you are encountering.

With that said, unless you can provide me with some screenshots and ways to reproduce the issue you are reporting, there is not much I can do in the way of assisting you. As you probably know, a lot has been changed and updated since 4.10 and you would need to read through the release notes of each engine release to get an idea of what has changed regarding your project specifically, and how to deal with the new changes.

Thanks,

when i published my app in the PlayStore, was rejected , because in 4.10 the engine use the LibPNG version that has a vulnerability of security also has the same probleme with som file “OpenSSL” i think, dont remember the name. That was my reason to do the upgrade.

Other wise, i´m happy to says that i was able to solve the problem, when i package the project in 4.10, i use the ETC2 configuration and work fine in my phone, but in 4.15 Dont, last night i package the project with ETC1 and all works just great.

i dont know what changed in the version 4.15 for that configuration but with ETC1 work fine, my Obb file is a little more big but nothing to worry about