Can anyone who experiences the non-loading world problem please check if their sound volume (in Survivalcraft audio settings) is set to zero. If yes, can you please set it above zero and try if that fixes the problem.
I discovered a bug with fire audio that causes the world not to start when you set the volume to zero.
This is a really nasty bug :-/ I fixed it already, if only I could upload the new version without waiting for certification…
[Edit] A lot of people report that setting audio to above zero indeed fixes the issue.