Hi folks, I have these castellations i've created, and on the top and bottom layers, copper pours will connect appropriately, however, when in a middle layer, the pour won't connect:

Note the green there is a GND pour.
however, on the bottom layer, a GND pour connects as expected:

Chrome
100.0.4896.75
OS X
10_15_7
EasyEDA
6.5.1