after some filing from unified box, the subjects and the senders start to get messed up

When i am filing/deleting of messages into my local folders after a bit the correspondent and the subject get mismatched somehow. I had a message from Jane Doe regarding bowling (only reason I would hear from her) after I had deleted her messages, her name started showing up as the coorespondent with subjects such as Rush concert information and here is your order information and a lot (approximately 10) messages that have nothing to do with her. What should I do. Filing and preserving email is very important to me which is why I picked your product. If I could get it to work effectively without these weird glitches I would happily pay for it. Side note : If I try to highlight messages in bulk and move them manually to a folder it will move folders and messages and make a big mess. The only way I can do it is to right click to get the little box to show up. Thank you, (PII redacted by moderator)