Yes, really. I generate an atlas with a coverage layer with 883 features, and the combo box from which to select the current preview list only the first 499 features as shown in the screenshot below (tested this with a variety of other big coverage layers):
Nevertheless, the higher numbers are accessible as well. I can select the higher numbers by going to #499 and clicking Next Feature button or go to the Last Feature and clicking Previous Feature, but then I see only the feature number without the page name:
Furthermore when I want, let's say, no. 700 I have to click next or previous about 200 times. That's somehow inconvenient.
I observerved this in QGIS 2.14.15 LTR as well as the latest 2.18.14 LTR, so isn't there anybody before me having more than 499 coverage features?!
It's definitly not due to Qt, where combos with 1000's of items a no problem, the author must have set explicitly
the_combo.setMaxCount(499) somewhere, but why (cp. http://doc.qt.io/qt-5/qcombobox.html#maxCount-prop)?
Question before raising an issue: Are there any technical or practical reasons for such limitation, or do I miss a setting somewhere?