Z Gap adjusts after purge for no known reason

[Hal]

I am having yet another issue....(ehhhhhh)

After Bed compensation and I purge my nozzle for a bit... my bed moves down about 1mm or so and causes a large gap between the bed and nozzle. The problem is my Z Gap is set and looks good, so I know that this is not my Z0 this has to be some other process running after the purge of the nozzle occurs. The only thing is I am not sure where that Gcode resides.

here is a video of my issue:

https://www.youtube.com/watch?v=givpolLc7wE

and here is a picture of my Z gap at Z0:

Paper is tight but not to tight against the paper.

If I were to do this during the print the paper would not even make contact with the nozzle.

any help would be appreciated

Thanks

[dc42]

Please post your bed.g file, and the GCode commands that do the purging if they are in a different file.

Does the problem still occur if you don't do the purge?