Another OPK Flashing Smiley Face... Please help

I started taking ovulation tests on the 12th got a negative. Then took another on the 13th and 14th and I got a Flashing Smiley face. Im using the Clearblue Advance OPK. On the 15th I got a Solid Smiley face. I didn’t test on the 16th since the monitor freezes up for two days. I tested again on the 17th it still indicated a peak. Took it again on the 18th and 19th and got negatives. This seems normal so far.

I skip taking one the last couple of days. I decided to take one today the 22 because my original Glow ovulation prediction was the 21st. I was just curious thinking it should be negative. But nope it’s a Flashing Smiley.

I’m confused. Going to see the gyno just a routine appointment so will ask her as well.