Can anyone help with a vertical load-control and tangent displacement control problem in Abaqus?

[Satiar]

Hi

I applied a vertical load control (negative y-direction) on the rigid body until it reached the pre-set value of  -100000nN then for lateral movement the rigid is constrained to only move in x-direction (displacement load) and with the same -100000nN constant load at negative y-direction, however, it isn't following the boundary condition I defined for it and the contact gets open and the rigid body moves upward as shown in the pictures!

would you please help me with this problem?

thank you so much

** MATERIALS
**
*Material, name="Coat"
*Elastic
292., 0.15
*Plastic
12., 0.
12., 0.01
*Material, name=substrate
*Elastic
127., 0.28
*Plastic
7., 0.
7., 0.01
**
** INTERACTION PROPERTIES
**
*Surface Interaction, name=_Int-1-Prop
1.,
*Friction
0.,
*Surface Behavior, pressure-overclosure=HARD
*Surface Interaction, name=indent
1.,
*Friction
0.,
*Surface Behavior, pressure-overclosure=HARD
*Surface Interaction, name=scratch
1.,
*Friction, slip tolerance=0.005
0.1,
*Surface Behavior, pressure-overclosure=HARD
**
** BOUNDARY CONDITIONS
**
** Name: but Type: Displacement/Rotation
*Boundary
but, 1, 1
but, 2, 2
but, 3, 3
** Name: sym Type: Displacement/Rotation
*Boundary
Set-7, 1, 1
Set-7, 5, 5
Set-7, 6, 6
**
** INTERACTIONS
**
** Interaction: Int-1
*Contact Pair, interaction=_Int-1-Prop
Part-1-1.Surf-1, Part-2-1.Surf-1
** ----------------------------------------------------------------
**
** STEP: Step-1
**
*Step, name=Step-1, nlgeom=YES, inc=1000
*Static
0.0001, 1., 1e-09, 1.
**
** BOUNDARY CONDITIONS
**
** Name: control refrence point Type: Displacement/Rotation
*Boundary
Set-4, 1, 1
Set-4, 3, 3
Set-4, 4, 4
Set-4, 5, 5
Set-4, 6, 6
**
** LOADS
**
** Name: Load-1 Type: Concentrated force
*Cload
Set-4, 2, -100000.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step
** ----------------------------------------------------------------
**
** STEP: Step-2
**
*Step, name=Step-2, nlgeom=YES, inc=1000
*Static
0.0001, 1., 1e-09, 1.
**
** BOUNDARY CONDITIONS
**
** Name: but Type: Displacement/Rotation
*Boundary, op=NEW
but, 1, 1
but, 2, 2
but, 3, 3
** Name: control refrence point Type: Displacement/Rotation
*Boundary, op=NEW
Set-4, 1, 1
Set-4, 3, 3, -400.
Set-4, 4, 4
Set-4, 5, 5
Set-4, 6, 6
** Name: sym Type: Displacement/Rotation
*Boundary, op=NEW
Set-7, 1, 1
Set-7, 5, 5
Set-7, 6, 6
**
** INTERACTIONS
**
** Interaction: Int-1
*Change Friction, interaction=_Int-1-Prop
*Friction, slip tolerance=0.005
0.1,
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step