The project reproduced on Samsung Galaxy S3, GT-I9300.
Build and run. A scene will be reloaded multiple times, each time loading models using Resources.Load. Sometimes (I found it that it usually is only once in a run) like within a couple of loads, you'll see all characters black as if there was no texture on them. It's very very brief flash in this repro that reloads scenes so quickly.

Adding a 1 frame wait after Application.LoadLevel seems to be a work around.