Why rider load capacity is half way down?

While I can't answer you for your specific circumstance (I don't know if you changed classes, etc.) - but in general there is 1 day that comes after your final week 4 CoZ battle and before the first day of warmups. On this one day, a lot of CoZ-related technology is disabled because you are not in CoZ. You will know when this day comes because it's usually a gathering day but there is no gathering.

If this is not the case, then it can be related to a number of other things:

- You may have changed classes (from raider to trader or farmer)

- You may be using a different troop type (vehicles provide the best cargo. Shooters provide the worst)

- You are using a lower-tiered unit (T1 units can provide less cargo capacity than T9, for example)

- You are using less troops (this may happen unexpectedly if you change heroes. Remember, the hero level and #1/#6 skills directly relate to the number of troops your APC can hold)