Couldn't connect to host using WWW.LoadFromCacheOrDownload in OSX editor

Hello,

We're experiencing a problem loading assets with WWW.LoadFromCacheOrDownload(Url, Hash). Randomly, it can't retrieve the asset bundle either from the remote server or local cache with the following message in the console: couldn't connect to host. If the asset is already in the local cache it stills shows this message.

We've changed the CDN to Cloudfront (very unlikely to be down), an Amazon S3 bucket and also a local web server in the same machine where the editor runs, but it randomly shows that it can't connect to the server.

This only happens in the OSX editor (reproduced on different OSX machines), on Windows and mobile devices everything is working fine.

If we use a "new WWW" object to download the bundle instead of WWW.LoadFromCacheOrDownload this error is never showed up.

Could anyone give me insights about why this can happen?

 

Same issue here. We've found that restarting the Unity editor temporarily fixes the problem.

 

I'm having this issue as well