I'm having a problem using AWS Device Farm, but the problem is that Amazon is not very specific on what goes wrong.

After I created a new run and try to upload my apk file it shows this message before getting to finish the upload:

[![enter image description here](https://i.stack.imgur.com/zYYMJ.png)](https://i.stack.imgur.com/zYYMJ.png)

> 
> There was a problem uploading your file. Please try again.
> 
> 
> 

There are no error codes. I have already tried several times using a signed app for debug and for release, but neither of them finishes the upload. Is this a temporal problem in Amazon cloud or it is a known error?