I still have the issue, i understood that is lighting related issue (This appear in 4.10.4 and also on 4.9.2).
After the light rebuild I have 1 error; WorldSettings_1 Maps need lighting rebuild. This makes me think that something went wrong when “appling the new static lighting to the map”. I’ve also tried to create a clean map to test if were my assets the cause of this issure, so I put 1 instance of every asset in this map and builded the light. If I press play it works fine, so I ended up this days of “research” that there is something wrong with my big map that causes this issue.
In the little map the launch button works fine but I can’t package the level.
[New error log][1]
81532-log2.txt (3.05 KB)