Freeport 7 system map showing correctly only when you are there. From outside, only 3 stars shows the map, whatever explored or not. Also, Fr.7 appears on the starmap from the beginning of the game.
trivial Freeport 7 system map bug
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to my knowledge not a bug
FP7 is initially shown because it is the starting system of the game (even before reaching NY). Solars are always visible by default.
That FP7 nav map only is available when inside the system certainly is hard coded. It in theory could be fixed but would cause troubles elsewhere.