Are you seeing this in Feb release, as I remember this wasn't like this in earlier releases -
Looks like a UI design bug to me, no logic I could think of having such a thin scroll bar.
I had faced problem in bar/combo chart in situations when data volume was too high and the bottom minichart which is used for scrolling purpose was showing very thin line. I contacted Qlik Support, as per them it is as designed and I should not be showing high volume data in Bar/combo.
You may like to contact Qlik support if you don't find any work around here.
Did you get an answer on this? We are experiencing the same issue and were wondering if it were created with the addition of the horizontal scroll bar. We've been through an upgrade (nine versions) so pinning it down has been hard to do. I've searched the forums, but I don't see a solution.
I do notice if I 'shrink' the table, I can get it to appear but the users don't like that solution.
If you find one, please share.