still have such issue in 5.3.4p4 please reopen it.

I get similar error after updating from 5.3.5p5 to 3.3.6:
"Cannot create FMOD::Sound instance for resource archive:/CAB-xxx.resource, (File not found. )"

In my case problem was caused by two elements:
- sound clip with enabled streaming,
- unloaded asset bundle after getting sound clip from it.

Changing sound clip settings from "streaming" to "keep compressed in memory" or "decompress on load" solve problems. Also keeping asset bundle in memory as long as sound streamed sound clip is needed also solves problem.

For the love of god, this is still not fixed. Happens in 5.3.5f1 and 5.4.0f1

I managed to avoid the issue in my project by delaying the loading to some frames later, so the problem is probably due to something in the engine which is not entirely ready yet at that time.

And 5.3.5p7

I am also still experiencing this bug in Unity Pro 5.3.5f1. Please re-open the issue :)

I'm getting this error in Unity 5.3.5p2

still got this error in Unity5.3.5f1

I believe this issue, post 5.3 fix, this error can pop up based on the path of the file you're trying to load. I got this error when attempting to load a file via the www object, but when I moved the file to a different location on the disk, the loading worked.

I then tried loading any of the .wav files in the original location, and none of them would load until moved to a different folder.

I will attempt to set up a concrete example when there is time, but maybe this information will help you.

I had the same issue when "split" APK (Error: Cannot create FMOD::Sound instance for resource). For correct this, i uncheck "Preload Audio Data" for all Audios (Assets .wav) in the game.

My Unity version is 5.3.4f1.