American Express has sent out an e-mail to some Marriott cardholders regarding points that didn’t post properly. It seems this relates to the 8x on gas, 8x on restaurants and 4x on Marriott purchases deal. I suspect originally these weren’t posting due to gift card purchases and now they are posting because enough people complained/threatened legal action (no idea if the original terms excluded these purchases or not).
Hat tip to @dustinrefill & mk712

