air bubbles/craters on side of beeswax pillars

[framebyframes]

struggling again with these beeswax pillars.
Does anyone know what might be causing this? The air bubbles/texture issues on the sides of the pillar.
Here's some background info:

•aluminum pillar molds are cleaned, preheated at around 150 F/ 65 C and remain inside an oven until wax is ready to be poured.
•100% natural/pure beeswax is poured into the aluminum molds at a temp of 155 F / 68 C, with an ambient room temperature of 65-70 F / 18-21 C.
• after pouring, the pillars are placed back in the oven(still at 130F to 150) for half hour. Then the oven is turned off and allowed to slowly cool. Usually the candles are left in there over night.

The oven step has definitely helped in the concave, sink hole in the base issue I mentioned on here. But now these [air bubbles?]/mini craters are showing up on the sides.

any help or suggestion would be greatly appreciated. I can't think of any other variable that would cause this issue.