Failed to save modifications to the server

[Hiba]

I'm geting the follwing , Failed to save modifications to the server. Error returned: 'Expression in partition 'n/a' in table 'n/a' references unknown variable or function 'Python.Execute'.

Could you please help

Thank you

[gameszka]

Hi, 

Try to disable "Store datasets using enhanced metadata format." preview function.

It has helped me in the same situation.

Gabor