Military state of residence with a different home of record.

I'm currently stationed in Maryland. In 2012 I PCS'd to my first duty station in Texas. Some time after, I submitted a DD 2058 to my S1 to change my state of legal residence to Texas.

 

Fast forward to now, I'm being asked when did I lived in 2019. At the time I was stationed in the state of NY.  I left Texas in 2015 but still I consider it to be the place I would like to retire. 

 

Also, when I choose Texas it asked me for specific residency change date. Right now I can't find the DD 2058 form in my records nor I can't remember the specific date.