It looks like the formations and tactics engine has been changed. This season in my league I've been seeing managers using 4-5-1 V and defeating 4-1-2-1-2 ND even when the 4-5-1 team is weaker or on par with ND. I am also seeing 4=4=2 classic beating 4-5-1 V which used to almost never happen (4-5-1 V was even lauded as a good counter to 4=4=2 classic).