Players Guide - Pg. 43
Skill Training or Specialisation This advance allows a character to train in one of the skills listed on his career card. A single skill can only be trained once per character rank. If a character trained a skill during character creation, he may not trait it again until character rank 2 - The maximum ranks of training in any given skill is equal to character rank, to a maximum of three ranks of training, regardless of when or how those skills were acquired. If one of those skills is already trained, the character can choose to instead spend the advance to acquire a specialisation for the appropriate skill.
It says it right there, the maximum ranks of training are equal to character rank. When they say once per character rank, it is not a limit meaning if you didn't train it in rank 1, you cannot double train it in rank 2.
It refers to them as ranks of training, which coincide with character ranks. If they intended it to be limited, they would have specified it in the rules.
I also agree that if I hoard my advances, I should not be punished. It makes no sense to tell me that I should have taken the skill training yesterday, but because today I ranked up, I lost out on that skill.
yes it does say "right there" that the maximum ranks of training is equal to your character rank.
But your ignoring the fact they also said that you can only train once per rank.
While you are rank 1 you can train each skill "once", while your rank 2 you can train each skill "Once", While your rank 3 you can train each skill "once"
To quote from p21 of the players guide
Once you hit 10 advances you are no longer rank 1, you are rank 2.
If you did not train a skill during rank 1 you cannot now spend an advance earned during rank 2 in order to train it in rank 1. You're training it IN rank 2 and that is your limit of expenditure on that skill in THAT rank.
Or in other words a character that learned his first expertise dice in a skill during rank 2 would not be able to get to 2 dice in that skill until he hit rank 3 and 3 dice when he achieves rank 4.