ONE: E_0285 MOVE ALL with SUBSTRING option

The SUBSTRING function in MOVE ALL has not yet been implemented in Natural LUW and ONE.
The statement
MOVE ALL 'string' TO SUBSTR(field,n,m)
results in the following errors:

NAT0285 Field reference error; reference invalid or missing. (Natural)
E_0285 Field reference error; reference invalid or missing (NaturalONE)

The problem comes up now because NaturalONE cannot handle this.
In Natural SPoD environments, if mapped against a MF server, no problem.