Jose wrote:

2: Is the chart in error, or is there a reason to have both frequencies
on the chart as depicted? (I can't think of any).

Sounds like it was a charting error. The current plate only lists the
correct 109.5 frequency both in the plan view and in the briefing
strip.

If you had been flying a real aircraft (or a better simulator) you would
have been wise to check the identifier on the station before using it
for navigation.

This is especially important when they use the same frequency for
alternate ends. They *WILL* have different identifiers for the
different transmitter.