address one issue of #59063

src/vs/workbench/browser/parts/editor/tabsTitleControl.ts

@@ -1195,7 +1195,7 @@ registerThemingParticipant((theme: ITheme, collector: ICssStyleCollector) => {
 			const adjustedColorDrag = editorDragAndDropBackground.flatten(adjustedTabDragBackground);
 			collector.addRule(`
 			.monaco-workbench > .part.editor > .content.dragged-over .editor-group-container.active > .title .tabs-container > .tab.sizing-shrink.dragged-over:not(.active):not(.dragged) > .tab-label::after,
-			.monaco-workbench > .part.editor > .content.dragged-over .editor-group-container > .title .tabs-container > .tab.sizing-shrink.dragged-over:not(.dragged) > .tab-label::after {
+			.monaco-workbench > .part.editor > .content.dragged-over .editor-group-container:not(.active) > .title .tabs-container > .tab.sizing-shrink.dragged-over:not(.dragged) > .tab-label::after {
 				background: linear-gradient(to left, ${adjustedColorDrag}, transparent) !important;
 			}
 		`);