I am having similar issues claiming the reward for a completed milestone. I feel I have taken all the "usual" steps to work around this issue short of uninstalling/reinstalling the game. What is strange is that so far it is just these two. I have completed other milestones and weapon mods and were able to claim those prizes. As you can tell by the screencaps I hope to attach, I have completed the milestones, they are selected, but the button to claim is greyed out or otherwise not clickable. My guess is that it has something to do with the reduction in kills for the milestone from last patch. There are several Facebook groups I am in that have users reporting similar issues with the IQA-11 in particular.
Thanks.
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