To avoid sending thousands of records back to my control, I have set the minlength equal to 2. This has been working without issue until I upgraded Kendo UI from a 2014 version to the latest 2015 version. The filtering and control works but the first time you type to start filtering and you reach your minlength, the dropdown appears(as expected with the filtered data) but the text that was typed in the combobox gets erased. When you continue typing, no additional filtering happens until you reach the minlength, at which point the control behaves correctly. The only way for the problem to reoccur in that control again is to reload the page.
I have several pages that use this control. All of them now have this behavior but worked fine before the upgrade.