It is a well known
fact that if a man becomes famous and wealthy he quickly
becomes besieged by dubious persons who attempt to take
advantage of him. This was also true for Barks, who often
had difficulties dealing with - and dismissing - some of
these new 'friends' on a personal level. This led to
cases of more or less severe fallouts through time.
The first group
generally incorporated persons who may not even have been
aware that they owed Barks royalties. For many of his
paintings Barks had a clear agreement with the purchasers
that if they sold his work the new owner was to pay Barks
royalties. This way he would also have a chance to 'follow'
his paintings. Of course, there was a downside to such a
fairly loose agreement, because a seller would 'forget'
to inform the new owner of the arrangement thus cutting
the royalty pipeline forever.
It has not been the intention to crucify any of the persons who owe Barks his just royalties (their names are known to this website), but merely to underline that the whole line of Royalties can also have its downsides. It surely had for Barks...