diff --git a/src/client.ts b/src/client.ts
index 982feb2bf3..4a460ec1e1 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -5443,10 +5443,10 @@ export class MatrixClient extends TypedEventEmitter<EmittedEvents, ClientEventHa
                     matrixEvents[i] = event;
                 }
 
+                // No need to partition events for threads here, everything lives
+                // in the notification timeline set
                 const timelineSet = eventTimeline.getTimelineSet();
-                const [timelineEvents, threadedEvents] = timelineSet.room.partitionThreadedEvents(matrixEvents);
-                timelineSet.addEventsToTimeline(timelineEvents, backwards, eventTimeline, token);
-                await this.processThreadEvents(timelineSet.room, threadedEvents, backwards);
+                timelineSet.addEventsToTimeline(matrixEvents, backwards, eventTimeline, token);
 
                 // if we've hit the end of the timeline, we need to stop trying to
                 // paginate. We need to keep the 'forwards' token though, to make sure