the key to making 'q' to work was just pausing the game?!?!?!

src/net/torvald/terrarum/modulebasegame/ui/UIJukebox.kt

@@ -94,6 +94,28 @@ class UIJukebox : UICanvas(
         return false
     }
 
+    override fun doOpening(delta: Float) {
+        super.doOpening(delta)
+        INGAME.pause()
+        INGAME.setTooltipMessage(null)
+    }
+
+    override fun doClosing(delta: Float) {
+        super.doClosing(delta)
+        INGAME.resume()
+        INGAME.setTooltipMessage(null)
+    }
+
+    override fun endOpening(delta: Float) {
+        super.endOpening(delta)
+    }
+
+    override fun endClosing(delta: Float) {
+        super.endClosing(delta)
+        UIItemInventoryItemGrid.tooltipShowing.clear()
+        INGAME.setTooltipMessage(null) // required!
+    }
+
     override fun dispose() {
     }