Different behaviour FileLister after upgrade 2.5.1

Installing the exact same resource in an upgraded MODX Rev. v 2.5.1
suddenly FileLister on that page adds filesize, lastmod and a 1 or 0 behind the link.

example:
Benelux HeraldN1.pdf 58.45 kb Oct 24, 2016 1
Benelux HeraldNAll.pdf 243.62 kb Oct 24, 2016 0

The 2.4.1 version did not use a chunk but resulted in a perfect link-list.
[[!FileLister? &path=`assets/files/Her/` &outputSeparator=`..br /..` &sortDir=`DESC` &sortBy=`filename`]]

example:
Benelux HeraldN1.pdf
Benelux HeraldNAll.pdf

Everything is the same, but I cannot find the reason for this sudden addition...

Installing chunks for listings does not have any effect, the additions just keep showing up.
[ed. note: lmv last edited this post 7 years, 6 months ago.]

problem solved
apparently former MODx-version allowed FL to work without it's chunks