I just checked one of mine to see if that is normal. Mine both show as powering on a MS350-48. Depending if this is in production you could try turning the switch off and reseating both power supplies or swapping them into each others slots to see what happens. Then power back on.
Adam R MS | CISSP, CISM, VCP, MCITP, CCNP, ITILv3, CMNO If this was helpful click the Kudo button below If my reply solved your issue, please mark it as a solution.
I checked on an MS425 and they were both in the state "powering" - same as @Adam.
So perhaps "connected" is not normal. I think I would be tempted to open a case with support. I think I would also be tempted to remove and re-apply power to the power supply that reports as being "connected".