samilag I do not do that much solar or lunar viewing, but after the update I had about 50% success in finding the Sun and 0% success in finding the Moon with the S50 GoTo function. The only one Moon shot I was able to take was by manually pointing the S50 to the target, which is not a very fun exercise.
More importantly, GoTo in Stargazing mode is far from perfect, although not as bad, and this predates the latest firmware update. Sometime GoTo does work (and with the latest update that takes you directly into Enhancing mode, which everybody here seems to agree is not a good change), but sometimes takes forever, getting stuck in repeating Identifying steps - the S50 is already pointing perfectly at the target but it is not able to realize that. More often than not, I just cancel the GoTo when in Identifying mode, when the S50 arm is not moving, then manually change to Stargazing mode, where, even with the newest firmware, I still can control the LP filter, the focusing and manually start Enhancing. As a matter of fact, if you are bothered by the latest change that drops you automatically from GoTo SkyAtlas state into Enhancing, cancelling the GoTo during one of the Identifying steps and manually going into Stargazing will address that issue.