No, this happens when I open a world at night, and when I place/break blocks in the area that is lit, the rest of the area is updated.
In the attached screenshot if you place sand on the side of the 2nd block from the top it bounces but place it on the side of the top block & it breaks.
Confirmed for 18w20c.
It's in 18w15a, too.
18w10a
What is intended, that boats/minecarts do or do not pick up armor stands?
18w08b
18w08a
18w07c
18w07b too.
And in 18w05a.
Also in 18w02a.
Just confirmed in 17w50a.
I don't think so.