createPlayingSoundAt errors in debug.txt

[EmeraldMT]

Issue occurs while standing inside the large forest biome in the lobby area.
debug.txt will have these warnings repeated multiple times per second.

2019-03-19 17:05:46: WARNING[Main]: before createPlayingSoundAt: invalid name
2019-03-19 17:05:46: WARNING[Main]: createPlayingSoundAt: out of memory

[sofar]

This is technically a bug: we're sending too many sound events in the forest - there is just too much leaves around the player there.

We can fix it, by e.g. limiting the amount. That's not even that complex, so we should keep this open for now.