No 2nd gear

If your band adjustment was too loose, the band strut can actually fall out and cause a loss of 2nd gear. Not a big deal, but you will need to drop the pan and valve body and check the front band aply linkage. If that looks good you can test the operation of the band with about 40lbs of air pressure to the port that activates it from the valve body. If that all works ok something may be up in the valve body.