coco It looks like you registered your rewards address after the distribution was made. Additionally by the looks of it, it was just about an hour shy. Last distribution was 2019-04-06 21:38:41, the transaction hash you linked was 2019-04-06 22:22:17. Unfortunately, we cannot retroactively adjust distribution. I greatly apologize that there is nothing I can do.
Our instructions linked: https://nodeforge.atlassian.net/wiki/spaces/CI/pages/31358993/Testnet+Registration+and+Distribution+Process states, "Once the community has had the opportunity to confirm report results ("Contest Period"), rewards will be distributed on the 5th of every month (for the prior month period). Once the Contest Period has lapsed, distributions cannot be retroactively adjusted."
We give at least a five day grace period for the "Contest Period" in the event there are discrepancies. The Contest Period could be longer until this entire process is automated, which was the case (distribution made on the 6th). But once the distributions have been made, its cannot be modified.
We do have your packing address registered now, so you should now be included in all future distributions.