diff --git a/tractor/_root.py b/tractor/_root.py
index 4bc9846c..5ad1afb9 100644
--- a/tractor/_root.py
+++ b/tractor/_root.py
@@ -479,7 +479,7 @@ async def open_root_actor(
             # start runtime in a bg sub-task, yield to caller.
             async with (
                 collapse_eg(
-                    bp=True,
+                    # bp=True,
                     hide_tb=False,
                 ),
                 trio.open_nursery() as root_tn,