diff --git a/web/app/components/workflow/hooks/use-checklist.ts b/web/app/components/workflow/hooks/use-checklist.ts
index 4b0fcca192..ebef0e0c2c 100644
--- a/web/app/components/workflow/hooks/use-checklist.ts
+++ b/web/app/components/workflow/hooks/use-checklist.ts
@@ -120,7 +120,6 @@ export const useChecklist = (nodes: Node[], edges: Edge[]) => {
             varErrorMessage: [],
           })
         }
-        errMessageMap.set(node.id, list[list.length - 1])
         if (nodesExtraData[node.data.type as BlockEnum].checkVarValid) {
           const { errorMessage: varErrorMessages } = nodesExtraData[node.data.type as BlockEnum].checkVarValid(node.data, { ...allVariablesMap, ...node._parentOutputVarMap }, t)
 
diff --git a/web/app/components/workflow/utils/workflow.ts b/web/app/components/workflow/utils/workflow.ts
index 739908646a..d9d6dad988 100644
--- a/web/app/components/workflow/utils/workflow.ts
+++ b/web/app/components/workflow/utils/workflow.ts
@@ -135,7 +135,7 @@ export const getValidTreeNodes = (nodes: Node[], edges: Edge[], isCollectVar?: b
             varMap[newPath] = item
             getParentOutputVarMap(item, newPath, varMap)
           })
-          outgoer._parentOutputVarMap = { ...(root._parentOutputVarMap ?? {}), ...varMap }
+          outgoer._parentOutputVarMap = { ...(root._parentOutputVarMap ?? {}), ...(outgoer._parentOutputVarMap ?? {}), ...varMap }
         }
 
         if (outgoer.data.type === BlockEnum.Iteration)
@@ -388,7 +388,7 @@ export const getNotExistVariablesByArray = (array: string[][], varMap: Record<st
     return []
   const var_warnings: string[] = []
   array.forEach((item) => {
-    if (!item.length)
+    if (!item.length || !Array.isArray(item))
       return
     if (['sys'].includes(item[0]))
       return