If it ain't broke, LET'S BREAK IT!

I noticed that same thing with dependents, you type the SSN and it usually pops down to Relationship...but now it just jumps across to DOB.  

It also jumps (both using Enter or Tab) to lines that you cant type into on the 1099R worksheets (I remember this being an issue years ago, don't remember 2017 having that problem though).

I am currently researching this behavior. I will follow up on this post when I have additional information.

How's the research coming?  This is maddening when filling out a Schedule F or C and the cursor goes across and not down.  Can't you try and make my job easier 😉