I was messing around in my officers screen, trying to resign some army officers that did not have any ground troup training skills, and assigning officers that do, to prevent them from being released from service due to no assignments.
In the right tab, I selected 'ground forces training rating'
There I selected the first unassigned officer with combat training rating (50), and then, in the list on the left (rank 1), I found an assigned officer that did not have any skills at all.
I retired that officer (while he was assigned)
Then, I (accidentally) chose the 'teams' option from the potential assignments dropdown.
I got this error:
Error in GrdCommanders_Selchange
Error 30009 was generated by MSFlexGrid
Invalid Row Value
Please Report....etc
After doing some testing, I narrowed the error down, and can reproduce it.
It has to do with the scrollbar
How to reproduce:
-select groundforce officers
-select ground forces from the potential assignments dropdown (should be there by default)
-drag the scrollbar a bit
-select teams from the potential assignments dropdown
voila, error
I suspect that it will give the error for any switch from a potential assignment group that has a scrollbar to a potential assignment group that has no scrollbar. I just do not have enough ships yet to test that.