Fix exceptions on PyQt5 crashing entire application

source/carla_host.py

@@ -60,6 +60,12 @@ try:
 except:
     hasGL = False
 
+# ------------------------------------------------------------------------------------------------------------
+# Safe exception hook, needed for PyQt5
+
+def sys_excepthook(type, value, tback):
+    return sys.__excepthook__(type, value, tback)
+
 # ------------------------------------------------------------------------------------------------------------
 # Session Management support
 
@@ -2492,6 +2498,9 @@ def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = No
     sys.stdout = CarlaPrint(False)
     sys.stderr = CarlaPrint(True)
 
+    if config_UseQt5:
+        sys.excepthook = sys_excepthook
+
     # --------------------------------------------------------------------------------------------------------
     # Done