Game-Breaking v1.66 Bug

I've pointed this out before when the 1.66 patch first came out and sent a report to Malfador, but nobody seemed to notice. When I save a game in which some ships are cloaked, then later load that game, all of the cloaked ships become uncloaked. I've tested this on two different computers and got the same result. I don't know whether this was caused by 1.63 or 1.66, because I upgraded straight from 1.58. This is a real problem for me, because I make extensive use of cloaked satellites and ships to observe the other empires. Could somebody confirm this with their game?