fix interactivity bug for multiple instances of ligand-env

src/plugin/manager.ts

@@ -123,6 +123,7 @@ class Visualization {
 
     private ligHeatmapMouseoverEventHandler(e: any) {
         if (this.depiction === undefined) return;
+        if (this.ligandIntxData === undefined) return;
         const atomName = e.detail.name; // CustomEvent
         /**
          * This has been changed so we can highlight every Atom
@@ -136,9 +137,10 @@ class Visualization {
 
         if (atom.length > 0) {
             this.depiction.atomMouseEnterEventHandler(atom[0], lastElement, true);
-        } else {
-            this.depiction.atomMouseLeaveEventHandler(false);
         }
+        // else {
+        //     this.depiction.atomMouseLeaveEventHandler(false);
+        // }
     }
 
     private ligHeatmapMouseoutEventHandler(_e:any) {