Testnet - block submission
Running on testnet, some blocks get mined but the majority does not.

12:36:06 TRACE src/pool.c:2032: Checking hash against blobk difficulty: 30176, job difficulty: 75000
12:36:06 INFO  src/pool.c:2037: +++ MINED A BLOCK +++
12:36:06 DEBUG src/pool.c:2081: Storing share with difficulty: 75000
12:36:06 WARN  src/pool.c:1495: result not found
12:36:06 WARN  src/pool.c:1496: status not found
12:36:06 WARN  src/pool.c:1507: code not a json_type_object
12:36:06 WARN  src/pool.c:1511: Error (-7) with block submission: Block not accepted
12:36:06 WARN  src/pool.c:1515: Error submitting block: (null)