My experience trying to use the new sgminer with hashbag pool:
[16:19:29] Started sgminer 5.3.8
[16:19:29] * using Jansson 2.7
[16:19:29] Started sgminer 5.3.8
[16:19:29] * using Jansson 2.7
[16:19:32] No login credentials supplied for pool.hashbag.cc
Then closes.
What is in your config or bat? Looks like an address error...
In a command prompt in the same folder as sgminer do the following with being your address
sgminer.exe -k tribus -o stratum+tcp://hashbag.cc:8533 -u -p d=0.002
Try something like that