From bcfa591ed23a032ae84056ab3926edf6529d2d12 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sat, 6 Jan 2024 05:17:27 +0100
Subject: [PATCH] Fix crash (or stuck solo) when removing tracks

---
 libs/ardour/session.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index a3df22404f..94ec405757 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -3550,6 +3550,10 @@ Session::remove_routes (std::shared_ptr<RouteList> routes_to_remove)
 
 			/* speed up session deletion, don't do the solo dance */
 			if (!deletion_in_progress ()) {
+				/* Do not postpone set_value as rt-event via AC::check_rt,
+				 * The route will be deleted by then, and the Controllable gone.
+				 */
+				(*iter)->solo_control()->clear_flag (Controllable::RealTime);
 				(*iter)->solo_control()->set_value (0.0, Controllable::NoGroup);
 			}