Blox and where from Snippet

I had to upgrade to 2.6.5 for Security reasons (was 2.3.3; very old, I know).
I get a lot of errors. I have fixed some, but I have no solution for or ideas about this one.

I have a snippet that generates a filter for BloX:
prepareStateFilter -- outputs --> {"state:IN":[1,2,8,12]}],[{"debtor_id:IN":[1,45,47,48,33,39,119,120,125]},{"OR:type:IN":[10]}

I have a resource which outputs a JSON file:



The &where-value is dynamic:


Since the update I get this error:

(ERROR @ /core/model/modx/modparser.class.php : 540) Could not find snippet with name {"state:IN":[1,2,8,12]}],[{"debtor_id:IN":[1,45,47,48,33,39,119,120,125]},{"OR:type:IN":[10]}.

I don't know how to fix this. I tried to use migxLoopCollection but that gives the wrong result when the resultarray is empty. And I am not sure if I won't get the same error as well.

Thanks for the help,

Erwin

Because my errorlog is flooding with (ERROR @ /core/model/modx/modparser.class.php : 540) Could not find snippet with name... I need some kind of quickfix. Thanks to this webpage https://sepiariver.ca/blog/modx-web/5-modx-methods-you-need-to-know-about/ I thought of the idea of using a placeholder.




This seems to do the trick. No idea of this is best practice, but this prevents the "snippet not found" error.
I still like to know if this error is a bug or by design.