Merge pull request #6426 from matrix-org/gsouquet/event-tile-null-guard

Add null guard for room prop in EventTile

src/components/structures/MessagePanel.tsx

@@ -743,7 +743,7 @@ export default class MessagePanel extends React.Component<IProps, IState> {
                     enableFlair={this.props.enableFlair}
                     showReadReceipts={this.props.showReadReceipts}
                     callEventGrouper={callEventGrouper}
-                    hideSender={this.props.room.getMembers().length <= 2 && this.props.layout === Layout.Bubble}
+                    hideSender={this.props.room?.getMembers().length <= 2 && this.props.layout === Layout.Bubble}
                 />
             </TileErrorBoundary>,
         );