As promised, I tested, Sygic v16.1.8 (14.05.2016) with butter's last lines in the working content.info file and TT ta.2015.12 Europe + Israel maps. Same problem as 16.1.2 TT Europe maps are detected, None of the Israel maps is detected. TT not detected, OS neither. So, I come back to v16.2.0.
@butter: If you read closely my posts you'll notice that I have no problem to view Israel maps. In fact, with my content.info I can view isr.ta.2015.12 but NOT isr.os.2015.10. So, with yr content.info file I can't view none of the Israel maps.