I'm surprised there hasn't been more discussion about this. I have noticed the same problem quite frequently given the right traffic conditions. Even in reasonable weather, multiple trucks / lorries with tail lights in certain positions get detected as traffic lights.
The same problem occurs with low level repeaters (common in France for example, but some appearing in UK) which get interpreted as additional full-sized traffic lights in the distance.
OT for this thread, but it makes me contemplate the difference (if any) between putting money into a potential product on Kickstarter vs buying an existing product (even if not officially completed / beta software) from an established business.
I doubt you could get 'finance' or lease a Kickstarter 'purchase'!