diff --git a/IRaCIS.Core.Application/Service/Allocation/DTO/VisitTaskViewModel.cs b/IRaCIS.Core.Application/Service/Allocation/DTO/VisitTaskViewModel.cs
index 86d65b479..405e061b7 100644
--- a/IRaCIS.Core.Application/Service/Allocation/DTO/VisitTaskViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Allocation/DTO/VisitTaskViewModel.cs
@@ -476,6 +476,8 @@ namespace IRaCIS.Core.Application.ViewModel
 
 
         public UserTypeEnum UserTypeEnum { get; set; }
+
+
     }
 
 
diff --git a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
index e8854d97c..f4d13a114 100644
--- a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
@@ -215,7 +215,7 @@ namespace IRaCIS.Core.Application.Service.Allocation
                .WhereIf(!string.IsNullOrEmpty(queryVisitTask.SubjectCode), t => (t.Subject.Code.Contains(queryVisitTask.SubjectCode) && t.IsAnalysisCreate == false) || (t.BlindSubjectCode.Contains(queryVisitTask.SubjectCode) && t.IsAnalysisCreate))
                .WhereIf(queryVisitTask.BeginAllocateDate != null, t => t.AllocateTime > queryVisitTask.BeginAllocateDate)
                .WhereIf(queryVisitTask.EndAllocateDate != null, t => t.AllocateTime < queryVisitTask.EndAllocateDate!.Value.AddDays(1))
-              
+
                .WhereIf(trialConfig?.EnrollConfirmDefaultUserType == UserTypeEnum.MIM && _userInfo.UserTypeEnumInt == (int)UserTypeEnum.MIM, t => t.SourceSubjectVisit.IsBaseLine == true)
                .WhereIf(trialConfig?.PDProgressDefaultUserType == UserTypeEnum.MIM && _userInfo.UserTypeEnumInt == (int)UserTypeEnum.MIM, t => t.SourceSubjectVisit.IsBaseLine == false)
                 .WhereIf(queryVisitTask.IsWaitPIAudit == true, t => t.FirstAuditUserId == null)
@@ -276,6 +276,8 @@ namespace IRaCIS.Core.Application.Service.Allocation
             //发送对话
             var addDialig = _mapper.Map<PIAudit>(incommand);
 
+            addDialig.PIAuditImagePath = visitTask.PIAuditImagePath;
+
             await _PIAuditRepository.AddAsync(addDialig);
 
             await _visitTaskRepository.SaveChangesAsync();
@@ -292,7 +294,8 @@ namespace IRaCIS.Core.Application.Service.Allocation
             var visitTask = await _visitTaskRepository.FirstOrDefaultAsync(t => t.Id == incommand.VisitTaskId);
             visitTask.IsEnrollment = incommand.IsEnrollment != null ? incommand.IsEnrollment : visitTask.IsEnrollment;
             visitTask.IsPDConfirm = incommand.IsPDConfirm != null ? incommand.IsPDConfirm : visitTask.IsPDConfirm;
-
+            visitTask.LatestReplyUserId = _userInfo.Id;
+            visitTask.LatestReplyTime = DateTime.Now;
 
             await _visitTaskRepository.SaveChangesAsync();
 
@@ -1500,7 +1503,7 @@ namespace IRaCIS.Core.Application.Service.Allocation
                 return ResponseOutput.NotOk(_localizer["VisitTask_NoImageReturn"]);
             }
 
-            if (task.TaskState != TaskState.Effect || task.ReadingCategory != ReadingCategory.Visit || task.ReadingTaskState == ReadingTaskState.HaveSigned)
+            if (task.TaskState != TaskState.Effect || task.ReadingCategory != ReadingCategory.Visit /*|| task.ReadingTaskState == ReadingTaskState.HaveSigned*/)
             {
                 //---仅仅允许针对生效、未完成的访视任务进行退回操作，请刷新页面数据
                 return ResponseOutput.NotOk(_localizer["VisitTask_NonEffectiveTaskCannotBeReturned"]);
diff --git a/IRaCIS.Core.Domain/Allocation/PIAudit.cs b/IRaCIS.Core.Domain/Allocation/PIAudit.cs
index 8a5ec78fd..a61aeeec8 100644
--- a/IRaCIS.Core.Domain/Allocation/PIAudit.cs
+++ b/IRaCIS.Core.Domain/Allocation/PIAudit.cs
@@ -55,7 +55,7 @@ namespace IRaCIS.Core.Domain.Models
 
                 try
                 {
-                    return this.PIAuditImagePath.Trim().Split('|').ToList();
+                    return this.PIAuditImagePath?.Trim().Split('|').ToList();
                 }
                 catch (Exception)
                 {
diff --git a/IRaCIS.Core.Domain/Allocation/VisitTask.cs b/IRaCIS.Core.Domain/Allocation/VisitTask.cs
index decee508a..8fd3a53e3 100644
--- a/IRaCIS.Core.Domain/Allocation/VisitTask.cs
+++ b/IRaCIS.Core.Domain/Allocation/VisitTask.cs
@@ -437,7 +437,7 @@ namespace IRaCIS.Core.Domain.Models
 
                 try
                 {
-                    return this.PIAuditImagePath.Trim().Split('|').ToList();
+                    return this.PIAuditImagePath?.Trim().Split('|').ToList();
                 }
                 catch (Exception)
                 {