Problem with Docs sample

I’m using Chrome on Linux Mint and on an Android tablet to view the Docs (dhtmlx.com/touch/samples/apps/docs/index.html) and am experiencing some performance problems.

For example, if I click on the item ‘Controls’, the relevant article appears in the right hand window but the list item slides unnecessarily and does not highlight ‘Controls’ until I click on it again. It’s not very intuitive - is this natural behaviour or is it a bug in the example?

Hello,

It is a bug of grouplist. We will add the fix into the next version. The fix is also included into the latest dev version - viewtopic.php?f=22&t=33836#p106354.