Bringing the topic back, as still have not sorted my issues on bike cutting out at her will. A friend recently googled this and it made a lot of sense as every time I had to disconnect the battery for some time, the bike worked fine for long period. The first item described it about current excessive flow (that accumulates) due to ground wiring issues. https://motorandwheels.com/ducati-multistrada-problems/
I recall some time ago that key fobs were updated, in some cases replaced. Ask your dealer if either or both has been applied to your bike. They can see this on the vehicle record held by Ducati.