Going insane here. I have an employee who's outlook is having emails disappear randomly after she reads them or replies to them. It's not 100% of the time though. Seems totally random.
Backstory being she migrated computers, so i saved the .pst file and the .nk2 file and transferred them over to the new computer when setting up her email. I'm believing that its an issue related to the pst file.
What I've Tried
Views. The most common answer i found googling was the default view wasnt set to show read messages. This is definitely not the case. the views are setup as expected.
scanpst Out of desperation i tried to use the inbox repair tool. This seemingly made it worse? Probably not, but it definitely didnt fix it.
reinstalling outlook. Now, i ended up using the same PST file because the employee stores a lot of needed emails in her deleted folder (who the hell knows why), so otherwise those would all be lost. its still happening.
created new pst, transferred all emails to it still happening :(
Anyone have any experience with this? I'm getting very annoyed!