Windchill 12.1 - "Expand All" button under "Where Used" CAD does not completely expand all branches
With the same user and different supported browsers, default view or any other customized view, we observe the following strange behaviour in the "Where Used" tab for CAD;
1 - if you select all and click "Expand all", some of the levels are not expanded until the last level. This is what users normally do:

2 - if you expand level one by one, then it seems to work
This is the result in both cases:

Not all the CAD objects have this kind of problem.
We have not been able to find a pattern to reproduce this problem, neither calculate the impact of this problem, but when it happens it is always the same behaviour.
We have reported this case to PTC Tech Support without any specific solution because PTC is unable to reproduce this behaviour in his environments.
Windchill version: 12.1.2.7
Thanks in advance if some of you have had to deal with a similar case.
Maite

