Those new light-colored spots are most likely not sensor dust at all. Dust on the sensor shows up as dark spots because it blocks light. Colored circular spots are typically lens flare, caused by bright sunlight or another strong light source hitting the lens at an angle and reflecting inside it.

To confirm, take a test shot away from the sun or other bright light source. If the colored spots disappear, the sensor cleaning was successful and the issue is flare, not dirt.

To reduce flare:

• use a lens hood
• avoid aiming near the sun
• change your shooting angle or wait for the light to move

To properly check sensor cleanliness, photograph a plain bright surface such as a white sheet of paper or blank wall, stopped down to a high f-number like f/22 and slightly out of focus. Any remaining sensor dust or smears will show up there much more reliably than in a sky shot toward the sun.