diff --git a/api/js/etemplate/Et2Tree/Et2TreeDropdown.ts b/api/js/etemplate/Et2Tree/Et2TreeDropdown.ts
index 70892c0ede..8c9257ed18 100644
--- a/api/js/etemplate/Et2Tree/Et2TreeDropdown.ts
+++ b/api/js/etemplate/Et2Tree/Et2TreeDropdown.ts
@@ -15,6 +15,7 @@ import {SearchMixin, SearchResult, SearchResultElement, SearchResultsInterface}
 import {Et2InputWidgetInterface} from "../Et2InputWidget/Et2InputWidget";
 import {Required} from "../Validators/Required";
 import {SelectOption} from "../Et2Select/FindSelectOptions";
+import {EgwMenuShoelace} from "../../egw_action/EgwMenuShoelace";
 
 
 interface TreeSearchResults extends SearchResultsInterface<TreeItemData>
@@ -612,7 +613,7 @@ export class Et2TreeDropdown extends SearchMixin<Constructor<any> & Et2InputWidg
 		let o = event.relatedTarget;
 		while(o)
 		{
-			if(o == this.shadowRoot)
+			if(o == this.shadowRoot || o instanceof EgwMenuShoelace)
 			{
 				return;
 			}
diff --git a/pixelegg/css/fancy.css b/pixelegg/css/fancy.css
index 7fcfe27808..8d0bad987d 100644
--- a/pixelegg/css/fancy.css
+++ b/pixelegg/css/fancy.css
@@ -7108,6 +7108,9 @@ div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl div.complex_arrow {
   background-image: url('../../api/templates/default/images/dhxmenu_subar.svg');
 }
+body > .egw_menu::part(popup) {
+  z-index: var(--sl-z-index-dropdown);
+}
 body > .egw_menu egw-menu-shoelace {
   --sl-shadow-x-large: 0 4px 16px hsla(240, 3.8%, 46.1%, 0.6);
 }
diff --git a/pixelegg/css/mobile.css b/pixelegg/css/mobile.css
index 2105209d10..c9396e214a 100644
--- a/pixelegg/css/mobile.css
+++ b/pixelegg/css/mobile.css
@@ -7111,6 +7111,9 @@ div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl div.complex_arrow {
   background-image: url('../../api/templates/default/images/dhxmenu_subar.svg');
 }
+body > .egw_menu::part(popup) {
+  z-index: var(--sl-z-index-dropdown);
+}
 body > .egw_menu egw-menu-shoelace {
   --sl-shadow-x-large: 0 4px 16px hsla(240, 3.8%, 46.1%, 0.6);
 }
diff --git a/pixelegg/css/pixelegg.css b/pixelegg/css/pixelegg.css
index 3c8e0e031d..7027cc553b 100644
--- a/pixelegg/css/pixelegg.css
+++ b/pixelegg/css/pixelegg.css
@@ -7101,6 +7101,9 @@ div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl div.complex_arrow {
   background-image: url('../../api/templates/default/images/dhxmenu_subar.svg');
 }
+body > .egw_menu::part(popup) {
+  z-index: var(--sl-z-index-dropdown);
+}
 body > .egw_menu egw-menu-shoelace {
   --sl-shadow-x-large: 0 4px 16px hsla(240, 3.8%, 46.1%, 0.6);
 }
diff --git a/pixelegg/css/pixelegg.less b/pixelegg/css/pixelegg.less
index f2f033c201..d42efe7e2a 100644
--- a/pixelegg/css/pixelegg.less
+++ b/pixelegg/css/pixelegg.less
@@ -384,6 +384,9 @@ div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl div.complex_arrow {
   background-image: url('../../api/templates/default/images/dhxmenu_subar.svg');
 }
+body > .egw_menu::part(popup) {
+  z-index: var(--sl-z-index-dropdown);
+}
 body > .egw_menu egw-menu-shoelace {
   --sl-shadow-x-large: 0 4px 16px hsl(240 3.8% 46.1% / 60%);
 }
diff --git a/pixelegg/mobile/fw_mobile.css b/pixelegg/mobile/fw_mobile.css
index 0f759eed69..91eb1c6bfe 100644
--- a/pixelegg/mobile/fw_mobile.css
+++ b/pixelegg/mobile/fw_mobile.css
@@ -6918,6 +6918,9 @@ div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl div.complex_arrow {
   background-image: url('../../api/templates/default/images/dhxmenu_subar.svg');
 }
+body > .egw_menu::part(popup) {
+  z-index: var(--sl-z-index-dropdown);
+}
 body > .egw_menu egw-menu-shoelace {
   --sl-shadow-x-large: 0 4px 16px hsla(240, 3.8%, 46.1%, 0.6);
 }