Does it always crash on inserting the forth (4th) instance?
I just can't reproduce that. Here I've managed to as plenty as 7 instances, or more.
However, sudden and rather randomly, it was LinuxSampler plugin code that started to bitch itself about lacking of resources to create another thread or something like that. I believe that's exactly the same as I can read from your crash dump above. It sometimes does crash or just hangs in that, but definitely it's a linuxsampler issue, somehow.
Ay caramba!
Does it always crash on inserting the forth (4th) instance?
I just can't reproduce that. Here I've managed to as plenty as 7 instances, or more.
However, sudden and rather randomly, it was LinuxSampler plugin code that started to bitch itself about lacking of resources to create another thread or something like that. I believe that's exactly the same as I can read from your crash dump above. It sometimes does crash or just hangs in that, but definitely it's a linuxsampler issue, somehow.
Please, report it also to bugs.linuxsampler.org.
Cheers