Bug Extremly Slow Resources.Load() (File Read) on Android

Hi There,

since we have updated my Unity Project from 2020.3.36f1 to 2021.3.7f1 we are experiencing very long startup times for our application on android. Looking in the Profiler tells me that Resources.Load() is taking a very long time to load some scriptable objects used by two plugins we are using. Like 20 Seconds or so. Before this update of Unity it was working as expected.

Do Any of you guys have u clue, what could be causing this issue or how this is happening. Is anyone experiencing the same issue as me?

Here is a screenshot of the profiler on first frame:
https://i.imgur.com/hZRtgjc.png

 

Funny, I went the other way (2021.3 to 2020.3.34) and I'm experiencing the same Resources.Load taking seconds instead of milliseconds.

If you found a solution, maybe it would apply for the downgrade as well? By the way, there is a serious MotionEvent JNI error in that version of Unity if you are using the legacy input system. It will crash after about 25000 taps.

 

I'm having the same issue preventing me from upgrading from 2020.3.34 to 2021.3.x.

I found it happens when I build with LZ4 or LZ4HC compression enabled. Default compression mode works, but the build size is huge.

I've been trying to create a sample project to file a bug report, but I'm having difficulty reproducing it outside my project.

 

This fixed the issue for me. Thank you, @Tomas1856!

I renamed my launcherTemplate.gradle and generated a new one from Unity, and these were some of the diffs between them:




This breaking change doesn't seem to be documented in this guide:
https://docs.unity3d.com/Manual/UpgradeGuide2021LTS.html

 

Thanks for pointing in the right direction. In my case the magic noCompress flags were ['.unity3d', '.ress', '.resource', '.obb', '.unityexp'] although this is a project downgraded from 2021.3 so it may be unusual

 

This solved the problem for me as well. Thanks a lot for directing me in the right way!

I've renamed the launcherTemplate.gradle, baseProjectTemplate.gradle, and gradleTemplate.properties files; and then recreated them through the "Build Settings" again. This solved the performance issues with the File.Read operations.

 

this fixed my problem.

 

You saved me a lot of frustration and time. thanks.

Copy pastable:

noCompress = **BUILTIN_NOCOMPRESS** + unityStreamingAssets.tokenize(', ')

}**PACKAGING_OPTIONS****PLAY_ASSET_PACKS****SPLITS**

 

Omg, that was it! Thanks for the help! =)

 

Thank you Guys. You are awesome
I can't describe how I feel now.
Had the same problem , after upgrading from 2020, searched for issues, nothing found. Then started to change to addressables , spent 3 weeks, and today found the thread , which points to this thread. AND .... It worked MAN Thank you guys.