diff --git a/ui/media/js/dnd.js b/ui/media/js/dnd.js
index 386dbdaa..d282935b 100644
--- a/ui/media/js/dnd.js
+++ b/ui/media/js/dnd.js
@@ -1,5 +1,35 @@
 "use strict" // Opt in to a restricted variant of JavaScript
 
+function parseBoolean(stringValue) {
+    if (typeof stringValue === 'boolean') {
+        return stringValue
+    }
+    if (typeof stringValue === 'number') {
+        return stringValue !== 0
+    }
+    if (typeof stringValue !== 'string') {
+        return false
+    }
+    switch(stringValue?.toLowerCase()?.trim()) {
+        case "true":
+        case "yes":
+        case "1":
+          return true;
+
+        case "false":
+        case "no":
+        case "0":
+        case null:
+        case undefined:
+          return false;
+    }
+    try {
+        return Boolean(JSON.parse(stringValue));
+    } catch {
+        return Boolean(stringValue)
+    }
+}
+
 const TASK_MAPPING = {
     prompt: { name: 'Prompt',
         setUI: (prompt) => {
@@ -93,15 +123,21 @@ const TASK_MAPPING = {
 
     use_face_correction: { name: 'Use Face Correction',
         setUI: (use_face_correction) => {
-            useFaceCorrectionField.checked = Boolean(use_face_correction)
+            useFaceCorrectionField.checked = parseBoolean(use_face_correction)
         },
         readUI: () => useFaceCorrectionField.checked,
-        parse: (val) => val
+        parse: (val) => parseBoolean(val)
     },
     use_upscale: { name: 'Use Upscaling',
         setUI: (use_upscale) => {
-            useUpscalingField.checked = Boolean(use_upscale)
+            const oldVal = upscaleModelField.value
             upscaleModelField.value = use_upscale
+            if (upscaleModelField.value) { // Is a valid value for the field.
+                useUpscalingField.checked = true
+            } else { // Not a valid value, restore the old value and disable the filter.
+                upscaleModelField.value = oldVal
+                useUpscalingField.checked = false
+            }
         },
         readUI: () => (useUpscalingField.checked ? upscaleModelField.value : undefined),
         parse: (val) => val