Tab sequence unpredictable

[hin3x]

Hello,

I have a weird issue with tab sequences, lets say I have a layout with two forms and a ribbon bar. Each form has three fields, which means that there is something along these lines on screen

- ribbon bar on top
- form with field 1, 2, 3
- form with field 4, 5, 6

All DS based forms, there is no modification of the global tab sequence.

Usually the tab sequence goes nicely over the forms in the order that you would expect (the order of each field inside each form).

I have a case though where the tab sequence jumps from form 1 item 3 to the ribbon bar. When I keep tabbing the tab goes round, back over the form to follow the expected sequence nicely. From that point, the issue is gone I can open the form again without the issue ever occurring again (restarting the app brings it back again).

I know I'm probably close to the ledge here but do you have any clue what might be causing this? Especially since after going round once it behaves as it should?

Any help would be greatly appreciated.

We are on SNAPSHOT_v8.3d_2012-07-17/Pro Deployment (built 2012-07-17).

[Isomorphic]

We wouldn't really be able to troubleshoot this from just this prose description, but if you can create a runnable test case that shows the problem we can take a look.