First post. I have run into an issue while trying to certify and Eform 4 for a suppressor with Capitol Armory. I purchased a DA Wolverine and was successfully able to certify on 4/18/24. I purchased a DA Sierra 5 on 4/22/24 and have attempted to certify the F4 with Capitol Armory 3 or 4 times since then. Each time we attempted to certify, we received an error on the ATF eforms site. Capitol Armory has been great and they concluded that the error appears to be due to having a suffix in my name, Jr. They said they had a growing list of customers that are having the same problem and that they have notified the ATF NFA branch. I'm curious if anyone else has been having this issue. Apparently, ATF updated or performed some sort of system maintenance after 4/18, and that is what is responsible for this issue. I don't see any other posts discussing this, so please forgive me if this is redundant. I'm not sure if Capitol Armory has someone that monitors this site, but perhaps they could provide additional clarification or an update. Has anyone else experience this issue recently?