So i brewed my first 2 batches of all grain and I'm having a problem. i went to bottle and my gravity won't drop under 1.034. My OG was 1.064 on one and 1.052 on the other and both are around 1.034 now and have been sitting in my fermentation chamber for 4 weeks. the gravity hasn't changed at all since i transferred to the secondary. beer smith says i should be around 1.023 what should i do.