Check your input drivers. Make sure they haven't changed.

Try the ASIO drivers and the MME drivers (which may be called WDM) for the Line 6. See if one works better than the other.
Also check the midi device being used to make sure it didn't get changed, in Pref-MIDI area.
Just a couple things to test.

Lots of things can cause an access violation, so it may be something simple, and probably is since it worked fine before.


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