Use NINA Three-Point_polar alignment plugin. Keep higher exposure if using filter.
Note: On CDC keep Tracking on. Try 30 degrees away from meridian. If auto fails use Manual mode.
N.I.N.A Three Point Polar Alignment conundrum
From comments: NINA’s developer on Discord, who told me that it’s required to change the default rate of 3 degrees to a different number. I changed to 2.5 degrees and worked flawlessly in automatic mode.
An error near 1 arc-minute is very good. Sharpcap, NINA and re-runs will give different error for same position. Discussion is here
Easy Polar Alignment for Astrophotography - [Step by Step]