Try 0....
UCSVP System Variable
Type: Integer
Saved in: Drawing (viewport specific)
Initial value: 1
Determines whether the UCS in viewports remains fixed or changes to reflect
the UCS of the current viewport.
0 Unlocked; UCS reflects the UCS of the current viewport
1 Locked; UCS stored in viewport, and is independent of the UCS of the
current viewport
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Tracy W. Lincoln
Assistant Moderator - Autodesk Discussion Forums