Hello! I've just installed Unity 2017.1.2f1 and got these problems: 1) Latest version of UnityPurchasing causes Unity to hang after a couple of seconds after launch and then crash after 20-30 seconds hanging. 2) Any ParticleSystem.Emit call causes Unity to crash with this stacktrace: Receiving unhandled NULL exception #0 0x007ffd5e77f9c0 in funlockfile #1 0x007ffd5e780058 in void UpdateTpl<(ParticleSystemCurveEvalMode)1>(MinMaxCurve const&, ParticleSystemParticles&, unsigned long, unsigned long, unsigned long) #2 0x007ffd5e780060 in SizeModule::Update(ParticleSystemParticles&, unsigned long, unsigned long) const #3 0x007ffd5e7800b0 in ParticleSystem::UpdateSizeModules(ParticleSystem&, ParticleSystemParticles&, unsigned long, unsigned long) #4 0x007ffd5e7800e0 in ParticleSystem::EmitParticlesExternal(ParticleSystemEmitParams&, unsigned long) #5 0x007ffd5e7803d0 in ParticleSystem_CUSTOM_Internal_Emit(MonoObject*, ParticleSystemEmitParams&, int) #6 0x007ffd5e780410 in (Unknown) #7 0x007ffd5e780420 in (Unknown) #8 0x007ffd5e780430 in (Unknown) #9 0x007ffd5e780440 in (Unknown) #10 0x007ffd5e780450 in (Unknown) #11 0x007ffd5e780460 in (Unknown) #12 0x007ffd5e780470 in (Unknown) #13 0x007ffd5e780480 in (Unknown) #14 0x007ffd5e780490 in (Unknown) #15 0x007ffd5e7804a0 in (Unknown) #16 0x007ffd5e7804b0 in (Unknown) #17 0x007ffd5e7804c0 in mono_set_defaults #18 0x007ffd5e781230 in mono_runtime_invoke #19 0x007ffd5e781260 in scripting_method_invoke(ScriptingMethodPtr, ScriptingObjectPtr, ScriptingArguments&, ScriptingExceptionPtr*, bool) #20 0x007ffd5e7812a0 in ScriptingInvocation::Invoke(ScriptingExceptionPtr*, bool) #21 0x007ffd5e7812d0 in MonoBehaviour::CallMethodIfAvailable(int) #22 0x007ffd5e781460 in void BaseBehaviourManager::CommonUpdate<FixedBehaviourManager>() #23 0x007ffd5e7814c0 in FixedBehaviourManager::Update() #24 0x007ffd5e7814e0 in InitPlayerLoopCallbacks()::FixedUpdateScriptRunBehaviourFixedUpdateRegistrator::Forward() #25 0x007ffd5e7814f0 in PlayerLoop() #26 0x007ffd5e781510 in Application::UpdateScene(bool) #27 0x007ffd5e781590 in Application::UpdateSceneIfNeeded() #28 0x007ffd5e7815b0 in Application::TickTimer() #29 0x007ffd5e7817c0 in MainMessageIteration(void*) #30 0x007ffd5e7817d0 in g_timeout_dispatch #31 0x007ffd5e7817f0 in g_main_context_dispatch #32 0x007ffd5e781880 in g_main_context_iterate.isra.30 #33 0x007ffd5e7818e0 in g_main_loop_run #34 0x007ffd5e781910 in gtk_main #35 0x007ffd5e781990 in main #36 0x007ffd5e781f70 in __libc_start_main #37 0x007ffd5e782030 in _start 3) Actually we've just migrated our project to 2017.1.5 but there is no build for Linux, so if it is possible I would be happy if you can provide this build for Linux. In the meantime I will check 2017.1.1 and 2017.1.0 and update this post after test. Thank you in advance!