Hello again,
The SW button is blue, did you reboot your SIM server ? Or if that is not an option you could try to restart the VCRM and Insight Manager service. I'm afraid that i have some server that also have the blue button. Some servers are green and some are blue. That would indicate that this could be an bug.
The system itself is discovered correct if you look at the screenshot at Installed Version. You could try to delete the system from SIM rediscover add it to the baseline and see. So as you can read not a rocksolid solution but you could give it a try.
One thing i saw in my config that if you add a server to the baseline you should wait a wile after the save and see if the server gets added. Did you add other servers that do work ?
If you look at the screenshot i atached you can see a baseline, if i click on the view assigned Systems i see the server i just added, you you also see this in your setup?