Sub-expressions separated by colon results in error

[rero]

I am trying to offset my axes-limits with machine-dependant values.

So when I am trying to execute M208 with two expressions separated with a ':', I get an error:
"M208: Z axis maximum must be greater than minimum"

var offset_z = 1.0
M208 Z{-10+var.offset_z}:{136+var.offset_z}

Separating min-/max-values works with no problems

var offset_z = 1.0
M208 Z{136+var.offset_z} S0
M208 Z{-10+var.offset_z} S1

Is this behaviour to be expected?

[jay_s_uk]

@rero I believe it should be

M208 Z{-10+var.offset_z,136+var.offset_z}

[rero]

@jay_s_uk thx a lot!

You are absolutely right.
And to my shame: got this information already last week, and forgot about it ..