I would like to know if anybody has the same problem that you can't use all your sets of tyres in career mode, Grand Prix etc.? I play on PC with a whole race weekend and I only can use three sets of options and primes. While in 2012 the first set of each kind was greyed out, now the first set is greyed out, three sets available and the last are greyed out, too. This happens in every session. Steam Version, Patch #5 installed.