Bug/Issue Please help with mail bug

Local co op, I passed out one night and got a mailbox notification in the morning, I am able to read it but unable to accept the mail and it remains in my mailbox. I am using a handful of mods one is the mail framework. I am able to accept mail from all modded sources, but everything vanilla is stuck behind this mail. I know this because my local co op parnter ( not host ) was able to accept hers somehow and got floodeeld with like 10 vanilla messages. Can someone please help e with this? Im afraid of not being able to progress, I have yet to get through year 1.