Hi,

very annoying bug. Looks like the textField doesnt execute the "openPipelineUpdateReferenceUI" changeComand wich querys the textField and updates the namespace.
- One workaround without changing the script would be: disabling and enabling the namespace checkbox after entering the desired namespace.
- Or: within the openPipelineUI.mel - add following line to the openPipelineReferenceCallback() method (line 3255 for me):
optionVar -sv op_ns (`textField -q -tx op_refNamespaceField`);