Received error message while checking whether burning was successful: FFFFFFFE

We are having problems with burning our DA14580 modules, with a computer and a programmer that used to work well.
We suspect that the problem has to do with some windows-7 update or some damaged dll. we did not change anything else in the system.
We are running a script that executes smart-snippets from the command-line, so we are sure we did not change any of the flags.

We tried reinstalling Smart Snippets versions 3.4, 3.6 and 3.8 without success.
We did not try Smart Snippets 3.9 (The program was written with SDK3.0.8).

In the step that calls:
SmartSnippets.exe类型otp奴隶拴住write_custom_code -chip DA14580-01 -com_port 11 -baud_rate 57600 -gpio P1_2 -uart P0_4 -file ...
We keep getting the message:
Received error message while checking whether burning was successful: FFFFFFFE

The previous commands (-type booter and -type otp -cmd read_custom_code) finish successfully.

Any ideas?

Thanks.