Sponsor Contract Problems

Your latest patch claimed to resolve the sponsorship issue unless I’m mistaken. For me it certainly hasn’t. I’m able to achieve the 3 sponsorship requirements and unlock that particular sponsor race without issue. But then for what seems like no apparent reason they all go glitched. This can happen at any point whilst playing and not specifically related to sponsorship races. I lose all sponsorship acquired achievements and I lose the progress of the grid challenge categories. It is at 100 percent with all races won, and then will drop back down when this glitch happens. The races remain unlocked, the gold cup also remains but the green tick has going showing the race requirement hasn’t been achieved. I have replayed some of these races and the progress goes up again, but when the glitch hits again which it has done multiple times the same thing happens and I lose progress on the grid challenges section. There is no point in me replaying these races until this is fixed. The Kompass sponsor can no longer even be selected. It’s showing 3/3 on the selection icon but on the objective section showing only 2 requirements achieved. There are multiple sponsors that show 0/3 on the selection icons but 3/3 objectives complete. I have reselected multiple sponsors and achieved the objectives again but when the glitch hits I lose them all over again. 
please fix

Thanks