troubles with IPS updates

After upgrade from 14MP1 to 14MP2, my both SEPM servers can't download/update IPS signatures automatically. There are warnings ID 7201 in event log with "Size(in bytes):-1" in the event text. Any other definitions are updated correctly.

If I download JBD file for IPS manually, update works OK.

Do you think what could I do with it?

Thanks.