When forms throws this entry lock message on save to repository:

The operation cannot complete because an object is locked. [9045]

Since it is creating a new document I don't understand what was locked. I thought you can only lock and existing entry from changes being made, not lock the ability to create new entries.

I verified they do not have any configuration of parent folder fields set.

Here is the full error details

Laserfiche.Forms.CommonUtils.Exceptions.LFFormsException
Message: An error occurred during the execution of the Save to Repository service task. [LFF5426-ErrorExecuteSTR]
   at Laserfiche.Forms.Routing.SaveToLaserficheService.Execute(Int32 instanceId, IRoutingContext routingContext, RoutingInstanceStatus OriginalStatus, FormsHistoryContext& historyContext)
   at Laserfiche.Forms.Routing.ServiceTask.Execute(Int32 instanceId, IRoutingContext routingContext)

Inner exception: Laserfiche.RepositoryAccess.LockedObjectException
Message: The operation cannot complete because an object is locked. [9045]
   at Laserfiche.RepositoryAccess.EntryLock.LockInternal(HttpUrl url, LockType type, LockExtent lockExtent, Dictionary`2 additionalHeaders, String etag)
   at Laserfiche.RepositoryAccess.EntryLock..ctor(EntryInfo info, Nullable`1 duration, LockExtent extent, EntryNameOption options)
   at Laserfiche.RepositoryAccess.Entry.MakeDocFolderWithLock(EntryInfo info, EntryNameOption options)
   at Laserfiche.Forms.CommonUtils.LFHelper.CreateNewLFDocument(Session lfDb, String newDocumentName, FolderInfo lfParentFolder, Boolean autoRename, String volume, String ext, Boolean AddExt, Boolean& checkOutVersionDocument)
   at FormsModel.RoutingModels.Services.SaveToLaserficheMetadataHelper.SetupRootDoc(Session session, XmlDocument datasetXml, STLConfigurationObj conf, SaveToLaserficheParameters saveToLaserficheParameters, SaveToLaserficheDocument documentToBeSaved, Boolean isActionHistory, Boolean& documentCheckedOut)
   at FormsModel.RoutingModels.Services.SaveFormToLaserficheStrategy.SaveMainFormToLaserfiche(Session session, XmlDocument datasetXml, STLConfigurationObj conf, SaveToLaserficheParameters saveToLaserficheParameters)
   at FormsModel.RoutingModels.Services.SaveFormToLaserficheStrategy.SaveToLaserfiche(Session session, XmlDocument datasetXml, List`1 STLConfigList, SaveToLaserficheParameters saveToLaserficheParameters)
   at FormsModel.RoutingModels.Services.SaveToLaserficheHelper.OpenSessionAndSave(IEntityContext _AppContext, Int32 STLRepositoryId, LfProfileType profileType, List`1 STLConfigList, XmlDocument datasetXml, ISaveToLaserficheStrategy saveToLaserficheStrategy, String timeZone)
   at FormsModel.RoutingModels.Services.SaveToLaserficheHelper.SaveToLaserfiche(IEntityContext _AppContext, Int32 STLRepositoryId, LfProfileType profileType, List`1 STLConfigList, XmlDocument datasetXml, ISaveToLaserficheStrategy saveToLaserficheStrategy, String timeZone)
   at Laserfiche.Forms.Routing.SaveToLaserficheService.Execute(Int32 instanceId, IRoutingContext routingContext, RoutingInstanceStatus OriginalStatus, FormsHistoryContext& historyContext)