since my problem seems to be connected to the new website, which correlated with the 4.0 release I´m writing it in this categorie:
Apparantly Vuforia changed some things with the cube-trackers, since old cube-trackers dissappeared (or broke down into the single image targets),when the webside was changed.
I just uploaded my cube-tracker anew and have a very specific problem:
When I import this tracker-package into an old package (3.0.9) the tracking is quite bad. When I import the tracker into a new projekt (4.0.103) the first recognition is much better.
Unfortunately here comes a very strange behaviour: only some sides of the cube get recognized good, the other ones are quite bad (but they stick, when one side was recognized and the tracking doesn´t break, when we rotate the cube). Interestingly the affected sides change with every start of the app! Only secured thing is that the FIRST tracker shown to the cam is recognized good(always) - independend which one it is.
We testet it for about 2 days now in all possible variations but always get to the same behaviour.
The problem doesn´t lie with the images, since they are recognized as single ImageTargets just fine. (and as mentioned: every image is tracked just fine, if it was the first shown to the cam)
@ Vuforia: please help with this issue.