Combat Tutorial Loops, then encounters error

After completing the initial combat tutorial (which congratulates you on winning your first combat), you get looped into the initial combat tutorial. The troop total is decremented to reflect the loss in the first iteration, but after winning a second time it once again congratulates you on winning your first combat. After the second iteration, you get an error message that reads "Unknown error, No. 1710.2709" and then the second combat tutorial ("Guide-2") becomes available.