@PurpleTitan From my contacts in the homeschool world across the US (where we use DE and AP a bit), it happens more often than not. I suspect it’s why more top (private) colleges allow AP credit, but not DE. Technically getting a 5 on an AP test is supposed to equal an A in a college intro class, but it’s pretty common that it doesn’t happen or even come close.
At the statistically average high school where I work, it’s the rare student who can even get a 2 or 3 on an AP test after taking the DE class (getting an A or B), and if they did manage a 3 or greater, they taught themselves a bit of the course outside of class using review books and other materials. My IRL data includes Stats, Calc, Bio, Chem, and Physics locally. My boys had DE English too. In hindsight, having found them an AP course would have been better, but… it’s just English. 
My online knowledge from the homeschool world covers the US+ with many students heading on to college at all levels from CC to Top 10.
CC’s have a purpose (we used them for DE - I often recommend them to students), but how much value one puts into the content of their classes varies. One really needs to look hard at them and compare that to their goals.