we discovered a bug in the ExtJs-Grid. If you want to remove an editable column from the tab order, by setting tabIndex = -1, the selection jumps to an unexpected coordinate. This is done only by pressing the "Tab" key. Not when you press Shift + Tab.

We searched hours for a solution and would be looking forward to a workaround or a fix.

We have prepared an example Fiddler:


Thanks in advance.