Just got finished a team affinity showdown, after like an hour, where I beat the final boss, exited, but when I got back to the showdown menu, it booted me out. Went back in to diamond dynasty, and sure enough, the game believed I didn't complete the final boss game, so I didn't receive my 5 team affinity vouchers. 
Year after year, servers are sucky the first couple weeks after the release. Like I'm sure this is not a difficult problem to fix.