A very unusual wax formation, the cross happens when two pieces of wax form a literal cross shape.
This signifies one of the most absolute indicators of magic being worked against you. When you run into a cross in your work it is an almost certainty that someone has done work that is “crossing” you.
Depending on the other signs in the candle the cross may or may not mean that someone has deliberately crossed you personally with magic. It might be a deliberate work against you. But it may also be that someone has done magic on the situation to achieve the opposite of your goal, or to achieve an end that would somehow block your goal.
If the cross is paired with scorpion signs it means that someone has deliberately done work against you personally. It is also possible that that person is someone that you either currently or used to trust. The location of the cross may tell you what variety of work or what purpose the work serves.
What to Do:
This is a case where a reading is almost certainly need to determin what kind of work has been done, when, by whome, and with what exact intent.
After that, the right kind of cleansing and counter work can be done.
However it is always a good idea to do protection work right away to help block out as much of the negative work as possible.