Master Accent and Front Soffit did have exclamation marks. I couldn't figure out how to fix them. They seemed to go away over night. I suppose the auto query. However, they still look different that the stairwell icon. All 3 are insteon dimmer switches so I would think they should look the same.

The white-on-green "10011" icon indicates that the ISY has information to write to those devices.  You should try right-clicking them and choosing "Write Updates to Device".

I usually get that icon (when it appears intermittently) when there are comm issues.

Unfortunately insteon is very sensitive to noise and needs tons of filters in place to get things working smoothly. I'm on my second major system (second home) and I have not been able to manage getting my system to the reliability levels that others on here have. My old place had hardwired phase couples, numerous access points, filterlincs, etc. New place has less issues, but the more insteon devices I get, the more problems that seem to develop.