PeterC2: I have been able to get past the problem, but still happens at times. I tried to find a good save game to reproduce this issue and all I can say is it happens sometimes. In the attached file (which reads JPG but just change the extension to RAR), I have 2 saves, Save #8 is outside the airport from which I can reproduce the error more often than not, and #10 is the game actually stuck in the "boom loop:. I hope this helps.
m_kiewitz: It looks like some kind of sound/music system issue.
The explosion sound is still marked as active within the VM in your explosion save, but it isn't active anymore in the sound system. Scripts wait for the sound to be completed, which causes the endless wait.
Can you please download at least the current latest official ScummVM from
http://www.scummvm.org/downloads/ or better yet a current daily build from
http://buildbot.scummvm.org/builds.html and try again? The music/sound system was changed end of 2014, which was after the 1.7.0 release.
Saved games are compatible, but you can't of course save using for example 1.7.0 and then load the save in 1.6.0. It only works the other way (forward).
I was having problems with Windows 10 where the icons of apps on taskbar where missing, and the standard icons did nothing. I had also noticed that the sound wasn't working. A recent update has fixed those problems and LSL 2seems to be working. I will test this more to ensure no problem exists. Thanks for your help.