When an ion storm is situated in a way that it overlays a system and its \"fleet/ship icon\", the ships/fleets are unselectable, as the ion storm will get priority. Tested on SVN 5284, Screenshot attached.
Ion Storm overlaying fleet icon, reduced to 256 colors
Does it help to zoom in and out one step? I semi-suspect this will refresh the UI widgets and place the fields under the fleet icons...
I can't replicate this. Any time I have an ion storm over a fleet icon, mousing over the fleet takes priority. Zooming, reloading save, ending turn, etc. all have the same result.
At last, it happened again (SVN 5524)! And yes, you suspected right, I was able to workaround with a zoom out and back in! :) I have to add that this time the fleet was in orbit stealthed, together with a monster fleet, and I could click on neither of both until I zoomed.
Ion Storm over Elased
Fixed in Subversion.