Rules not triggered on specific content types

Hi all,

Initially I thought Rules did not work at all, for the rules were not triggered. Yet I got it working with 1 content type, not with others.

I try to:
- Viewed node is content type A, do redirect OR
- Viewed node is content type B, do redirect

When browsing to content C (thus not A or B), the rule report is shown. In other words, it says:

0 ms "Content is going to be viewed" has been invoked.
2.738 ms Executing the rule "Redirect for direct viewing particular individual nodes" on rule set "Content is going to be viewed"
3.014 ms Condition "Viewed content is A" evaluated to FALSE.
3.139 ms Condition "Viewed content is B" evaluated to FALSE.
3.197 ms Evaluation of "Content is going to be viewed" has been finished.

Nothing happens in other words, which is normal for content type C was not included in the rules.

However, when browsing to content type A or B (which normally should redirect), nothing of the above rules report is shown. No report at all, indicating that the rule is not triggered. I did not set cache nor in the pages, nor in the views, nor in the CSS. So cache would not be a problem.

How should I approach this one to track the bug of the rule...?