If you run lmms from the command line it may give us some debug statements to work with. Pardon my ignorance, but how do you do that with an AppImage? Like any other binary. Just type the path to the binary. For instance, in my Downloads directory I have a dedicated LMMS directory. I can run lmms b...

If you run lmms from the command line it may give us some debug statements to work with.

Thanks for reporting! I see this on one of my machines. I don't think it's in lmms but in one of the ogg related libraries but I'm only guessing. crash01.ogg seem to have some issues though. I get a warning in ogginfo but it may be unrelated. The sample should be fixed (re-exported). The ogg library...

...I first thought that the issue was related to the size of the audio file, so I started using OGG compressed files instead of raw WAV. But the crashes are still happening, even with a 4 minutes long 4.8 MB OGG file. We have a time limit pf 90 minutes in lmms-1.2 so this should work just fine. The...

but I miss the old LMMS instruments and especially 2x2 plate reverb. But there is no way to put them in Ableton. I The 2x2 plate reverb isn't native to lmms but from a separate project, caps . I haven't tried this but here is a way to use ladspa pluggins under VST. https://instrumaniak.github.io/bl...

VST-instrument hoster : not found, please install (lib)wine-dev (or similar) - 64 bit systems additionally need gcc-multilib and g++-multilib someone shed some light on this for me please You need wine in order to run lmms with VST compatibility (via VeSTige). When you compile lmms you also need th...

When you use sounds with long decay and/or lots of delay/reverb, it will just build up louder and louder when you loop it. Eventually the sound will clip somewhere in the chain. Some ideas to fix this. * Turn the volume down on the noisy track. * Faster decay on the note. * Turn down the delay/rever...

back_to_work wrote: Is this a feature?

No, this is known buggy behaviour in the Automation Editor.

Working off a copy of the failing project, remove one track at a time until it exports. Try and make a bare minimal project and zip it up and upload it somewhere, like the lmms sharing platform, and link to it here. Or you can pm it to me.

Just tested this on my other computer and it's indeed fixed in LinuxMint-18.3 which uses Ubuntu 16.04 (Xenial) repos.
Upgrade your OS is unfortunately the way to fix this. Unfortunately Ubuntu is very reluctant to patch bugs in their stable releases so this will not be fixed on their side.