[Note] This thread was originally posted on MSDN. As the MSDN Exchange Dev forum mainly focuses on developing issues and the TechNet Exchange forums for general questions have been locked down, we manually migrated this one to Microsoft Q&A platform to continue the troubleshooting.
We encountered a very strange bug with exchange search.
Outlook working in on-line mode (running on terminal servers, so we can`t chnage it to cached mode due high IO)
When user get message with any attached file AND forward it, the message disappears from the search results. Outlook search showing forwarded message from "SENT" folder, but do not showing original message in "INBOX"
There is an example on sreenshot
as you can see, search showing only 3 results, while we have 4 messages (2 in inbox, 2 in sent).
OWA have same issue.
Users do not use Conversation View, as some correspondence may contain dozens of messages that are difficult to view in this form.
This problem appear after upgrading to Exchange 2019 (CU3) from 2016. Now we installed CU8, but this bug still here...
Has anyone encountered a similar bug?