Hi Nico-Gumby!
That was it - after switching from TAA to the other modes (Nvidia DLSS Superresolution, FXAA or DLAA) the LDIN are clealy visible again - even at daytime.
Thanks so much!
Bert
PS: By the way a big THANK YOU to the whole iniScenedev team for the important update on PHNL. Now this scenery is perfect - except the not animated tram 😉