Brett Johnson * Ver:0.69 * (4 Aug 2011) * Efile: efile_cc47\ An artillery unit which is spotted only due to support fire (i.e., is not in dectect range of units), revealed status is not captured in save game. 1) artillery spotted due to support fire 2) save game 3) reload game 4) the "spotted" artillery has vanished
I cannot replicate this bug, regardless I do same steps you mention.
I'd need any savegame to test, couold you attach or send by email any ?