I have a TS501 tire tool.  My tool boots up as expected. As of late, after I select the vehicle model (it doesn't matter which make), I get either no selections, or just 1 or 2 selections for model years. Specific to my needs, I frequently use this tool on our fleet of Ford Econoline vans. After "make" selection, it used to put up 6 year ranges to choose from. Now I might get 1, or none, or 3 choices, there is no rhyme or reason to it. If I shut it down and start over, I get a different result. Now and again, I'll be lucky enough to have a selection for the van I'm working on, but it's rare. 

I have never updated this tool, as they don't make the Econoline van since 2015, so if it WAS working, it should STILL be working, right?

Has anybody else had this issue, and if you did, what did you do to fix it?