Ah right. Hmm, as I'm sure I had the same issues with the base ROM build on my SGS3, but I'll give it another try. You've tested this a fair bit, for full Navigation mode,with Satellite Imagery turned on yeah? I'm off to give it a go now.

Google are hugely conspicuous by their absence here too... One hopes v7.0.0 fixes this and is literally just round the corner...