Yes, that makes sense, That’s how I was used to it in modx evo: use a "+" in chunks if the content the placeholder refers to is aggregated by a snippet like Ditto and use an "*" in the resource itself for accessing resource fields.
What made me think here, is that I’m inside a chunk that Ditto uses to output the content! The
category placeholder in my case refers to a custom TV from within the aggregated resource, not the resource the Ditto call is placed in. So that’s why I was using a "+" in the first place. But that wasn’t working for me.
And now: When I use the placeholder with an "*" in the chunk (that’s the weird part), the TV from the aggregated resource is fetched correctly. When I use the "+" sign (as I was thinking I should), rendering of the page crashes on output...
So I thought there was a major change in syntax usage for the paceholders...

Or is there something wrong on my part?
Thanx and greetings!
Paul