diff --git a/ui/src/components/dynamics-form/items/knowledge/Knowledge.vue b/ui/src/components/dynamics-form/items/knowledge/Knowledge.vue
index cd604d494c3..901c2b149dc 100644
--- a/ui/src/components/dynamics-form/items/knowledge/Knowledge.vue
+++ b/ui/src/components/dynamics-form/items/knowledge/Knowledge.vue
@@ -41,7 +41,9 @@ const props = withDefaults(
 const emit = defineEmits(['update:modelValue', 'change'])
 
 const model_value = computed({
-  get: () => props.modelValue || [],
+  get: () =>
+    props.modelValue.filter((id: string) => availableList.value.some((item) => item.id === id)) ||
+    [],
   set: (value: string[]) => {
     emit('update:modelValue', value)
     emit('change', props.formField)