Offset Filter Calculator loads wrong filter list when two instances of NINA are running.

[John Hawkes]

I have two instances of NINA running for a dual imaging system. Although both display the correct filter list for the filter wheels they are individually connected one of Filter Offset Calculator screens displays the list from the other instance so it’s not possible to run the calculator correctly for that instance.

[Stefan B]

Please report plugin issues to their respective authors and not here