diff --git a/src/DocIterator.cpp b/src/DocIterator.cpp
index a059ad18d2..a3d81caadb 100644
--- a/src/DocIterator.cpp
+++ b/src/DocIterator.cpp
@@ -535,7 +535,7 @@ bool DocIterator::fixIfBroken()
 	size_t n = slices_.size();
 	for (; i != n; ++i) {
 		CursorSlice & cs = slices_[i];
-		if (&cs.inset() != inset) {
+		if (&cs.inset() != inset || !cs.inset().editable()) {
 			// the whole slice is wrong, chop off this as well
 			--i;
 			LYXERR(Debug::DEBUG, "fixIfBroken(): inset changed");
diff --git a/status.22x b/status.22x
index 4a56ac4565..21afca7697 100644
--- a/status.22x
+++ b/status.22x
@@ -79,6 +79,8 @@ What's new
 
 - Fix potential crash when cursor enters an inset (bug 10691).
 
+- Fix random crash when dissolving inset (bug 10667).
+
 - Avoid a case of stuck cursor after entering an inset (bug 10630).