After long testing and boosting I finally figured out what to do against these catan bugs !
First: never ever try to unlock two achievemets in one game at the same time!
trust me ,it is better not to, because you shouldn t risk what happened to many others by not unlocking some easy achievements like ten times the longest road !
Second: the easiest way to do the big achievemets concerning Chancellor and ..... of Catan is to use the method of building a city or a settlement and then quickly undo it and repeat that process til time is up !(the city method works better cause you have a counter for it that tells you when you should unlock your achievement, use LB and you will see a huge number of settlement pieces remaining that grows for every new city)
I suggest not doing this by your own cause I don t want people messing up others game ,so group up in a party and look for each other in ranked ,you will find eachother !(don t forget , never do both achievements in one run,
it s better to restart a new game than risking a bug)
Third: for those already infected by a bug please don t give up !
Catan has a piculiar way of counting your vips: if you quit during a ranked game your entire points earned during the match wont count !..... but there is a way how to reset this counter:
for this you need another xbox and another HDD so I propose to recover your profile on another box !
by now you did reset the counter and you have a new chance to unlock your robbed achievemets !
..........................so party up and help eachother !
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never hesitate