ClassReference of %Library.Persistent shows it as sub classes

http://docs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.cls?…

Tom.

In a similar situation I changed only one of the Serial classes to %RegisteredObject.
Compilation was fine:
Next I changed it back to %SerialObject.
Complation was fine again. And remained fine.

excellent help

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not a problem of version

A subquery using ORDER requires a TOP clause

Change the query to

SELECT *
FROM
  (SELECT TOP ALL
          sslog.userRowid,
          sslog.CreateDate,
          sslog.CreateTime,
          Sslog.SSUSR,
          sslog.Terminal,
          ssuser.Initials,
          ssuser.USName
   FROM SUser_Log sslog
   LEFT JOIN DHC_SSuser ssuser ON (Sslog.SSUSR = ssuser.userRowid
                                   OR sslog.ssusr = ssuser.Initials
                                   OR sslog.ssusr = ssuser.USName)
   WHERE ssuser.USName ['admin'
   ORDER BY sslog.CreateDate DESC)
WHERE %VID> 5

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You have 2 Options for LOCK

1) LOCK lockargument  
either you succeed or you hang until you get success or forever

2) LOCK lockargument:timeout 

timeout releases your attempt after the defined time
and signal by system variable $TEST if you were successful or not

so your code may have this structure

more on LOCK: http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY…

if  failing you may want to identify your competitor using  ^$LOCK

http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY…

given the property you want to sort is unique and suitable as key for your array you may get the expected result.

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