As previously in another thread already mentioned there seems to be a problem with the density sliders in TC as well as in MSFS. Only if both are set to 100% AI-traffic on the ground (p.e. at SimWings EDDH) is displayed. Playing around with those sliders the ground traffic disappears completely, where as the "flying" traffic according to TC map still seems to be working.
Rolf
I am now on SU10 1.27.13 and what I recognized in this respect is that if I set in MSFS / GENERAL OPTIONS / TRAFFIC the Aircraft Traffic Type to "REAL-TIME ONLINE" (Density Slider is greyed out) I get at SimWings EDDH just a few planes (2-3). But then starting AIG TC with 50% Activity Level it works e.g. the TC density setting is recognized and the planes appear and stay displayed.
will run some checkes on my end over the weekend
What I just discovered is that after deleting the content.xml now the slider in the TC works again as required i. e. setting it to 50% works.