diff --git a/cmd/core-runtime/main.go b/cmd/core-runtime/main.go
index fa47193..00e7df2 100644
--- a/cmd/core-runtime/main.go
+++ b/cmd/core-runtime/main.go
@@ -513,9 +513,12 @@ func main() {
 		var conversationHistory []interaction.HumanUtterance
 		if request.ConversationID != "" {
 			conversationHistory, _ = interactionRepository.Utterances(r.Context(), conversation.ID)
-		} else {
-			conversationHistory, _ = interactionRepository.RecentUtterancesForPrincipal(r.Context(), session.ActorID, session.PrincipalID, 64)
 		}
+		// Keep durable user context available even when the web client carries a
+		// conversation ID; a new or rotated conversation must not erase learned
+		// preferences.
+		recentUserHistory, _ := interactionRepository.RecentUtterancesForPrincipal(r.Context(), session.ActorID, session.PrincipalID, 64)
+		conversationHistory = append(conversationHistory, recentUserHistory...)
 		if request.ConversationID != "" && interactiondomain.IsRetryRequest(utterance.Content) {
 			if len(conversationHistory) > 0 {
 				for index := len(conversationHistory) - 1; index >= 0; index-- {