SDK manager to install DOCA 1.2.0 for BF-2 DPU: flash os on target device stuck at 99%

Hi! I have a BF os runnning previously, and I would like to reinstall the whole BF OS.
When I uninstall all sdk, and run sdkmanager again, it just failed and stuck at 99% when doing the flashing OS on target device.

Here is the screenshot of the report from terminal after I cancel it (because it takes over 2 hours)
Before the flashing, everything is installed successfully according to the log.

I am not really sure what could be wrong, as I have tried sdkmanager and successfully installed one before.

Any help is much appreciated!