Message content assertion defaults to null after restart

Hi,

The message content assertion changes are actually saving for me today upon exiting and restarting SoapUI Pro.

So, are you saving your project before exiting SoapUI?

Is this test step a cloned teststep i.e a copy of another test step?
Did you change the ordering of this test step in the project navigator?

Also please attach your project if possible, for further diagnosis.