Color Bleed

Flagship K Series Creality Flagship K2 Plus & CFS
1

Can someone explain why I get color bleed in my prints? Both of these were printed at the same time and one came out perfect the other didn’t

I had another one were it just dropped black where there was no black to be printed as if maybe it didn’t purge fully before printing the yellow.

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I actually tried cleaning up the black so ignore the scrape marks.

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2

My guess is that the one on the left printed first and by the time the second one was printer, all the other color was finally purged from the nozzle.

3

So any way to prevent this?