Maximum number of expressions in an ad-hoc report

[#1]

I am trying to create an ad-hoc report in which i have created a list box taking fields from an excel.

I am using the hide/show functionality in the pivot chart for different expressions based on the corresponding selection in the list box..

The problem i am facing is that i am not able to select all the expressions at once(8 in number)..

While i tried selecting the expressions one at a time,they were getting enabled .Also i tried different combinations of expressions from the list box but i was able to select maximum of 6 expressions at a time ..

What can be the problem,is there any capping on the max number of expressions using the conditional enabling  ??

[Gysbert_Wassenaar]

There's a limit of course since the number 'infinite' doesn't fit in any computers memory, but it certainly isn't 6. Can you post a qlikview document that demonstrates the problem?