His other skills were rising up every 2 weeks, some even each week, but range - only 3-4 weeks each time of direct fraining, so it is not sub-level question. If, it is not bug, it means that some players has "hidden skills" to progress somewhere quicker and somewhere slower (1.90 height - logically should increase JR speed), please confirm, could be it true?
Regarding FT- I see first time a player who are not up his FT skill after 2 weeks training, but may be be 1st level trainer (from last week) impacted, so accepting your explanation.