RB does not record:

I open an SGU file in RB, plays good.
In Tracks view I select an empty channel and change the button from M to P to activate and
click red record button.
I play and record, but when I select Save the take option the recording fails with error message:

"Could not open the file: c:\users\Jay Lee\AppData\Local\Temp|^0.WAV."

I am using Win 10 and RB 2018 version and Focusrite 2i2. I worked perfectly in 2017 version.
Please help. Thanks.

jol