Under earlier versions there has been an issue that Watie's Indians would spawn a second time in 62. I was under the impression this issue had been resolved. But in my last PBEM the three Indian regiments spawned a second time without the original regiments being destroyed.
I believe this may have been related to me incorporating Watie's Indians into a division. The game seems able to check for the indian regiments as long as they are independant units once they are part of a division the event condition doesn't work properly.
Find attached the game files of the round before the Indians spawned and the round the Indian replacement event (evt_nam_CSA_IndianRenewed01, evt_nam_CSA_IndianRenewed02, evt_nam_CSA_IndianRenewed03) fired. The Indians are part of Watie's division in Houston, TX.
Sorry if this had already been reported.