From ef0a8ba524f61e1a267c7e8e7c1e2803afbcad70 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed, 16 Apr 2025 20:43:37 -0600
Subject: [PATCH] allow a trigger slot to use an empty region

hopefully there are no complications from this :(
---
 libs/ardour/triggerbox.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libs/ardour/triggerbox.cc b/libs/ardour/triggerbox.cc
index a16466727f..a1d472ca79 100644
--- a/libs/ardour/triggerbox.cc
+++ b/libs/ardour/triggerbox.cc
@@ -2470,7 +2470,11 @@ MIDITrigger::setup_event_indices ()
 {
 	RTMidiBufferBeats* rt = rt_midibuffer.load ();
 
-	assert (rt->size() > 0);
+	if (rt->size() == 0) {
+		first_event_index = 0;
+		last_event_index = 0;
+		return;
+	}
 
 	if (rt->size() == 1) {
 		first_event_index = 0;