I'm sorry to report this, but yesterday on opening of a project, Ardour (3.5.380) complains about a missing Midi-file... :(

This is quite worrying - seems to me as though the problem can be summarised as:

Files go missing, not always because of a problem with Ardour FIles go missing because of a problem with Ardour for a variety of reasons, though not always one which is understood.

From a user point of view, its now easy to confuse these two points, and the great danger for Ardour, is that without any clear and precise reason, and possibly even when one is found, these issues are going to persist - even if only because of 1. being blamed on 2.

My worry is whether users can ever have confidence that their work is safe? or has Ardour simply become too complex to ever fully resolve this issue?