AppleScripting unix commands appears to break in ARD 3.5.

Question

AppleScripts that involve drawing information using the "execute" unix command task appear to be broken in Apple Remote Desktop 3.5.x. Attempting to execute the command results in a "variable not defined" error.
tell application "Remote Desktop"
          set sel to the selection
          repeat with s in sel
                    set ux to make new send unix command task with properties {script:"users", showing output:false, user:"root"}
                    set myUx to execute ux on s
                    return myUx
          end repeat
end tell
Result:
error "The variable myUx is not defined." number -2753 from "myUx"
This might be related to the previously reported issue involving reports, as documented here, because downgrading to ARD 3.4 seems to fix the issue. The instuctions for effectively downgrading as written by the user cathy fasano worked for me. However, this is only a workaround that forces you to use a version of ARD that may or may not work with Lion clients or on Lion systems.
Under ARD 3.4, the script returns something similar to
{status:"Succeeded on all", computerStatuses:{{|id|:"(computer ID number)", results:"(username)", output:"(username)", address:"(ip address)"}}}
Is anyone else suffering?

Answer 1

It appears the new 3.5.1 update, which claims to fix reporting, does not address this issue.