Player submitted formspec ('mail:inbox') but the name of the formspec doesn't match the expected name ('mail:message'), possible exploitation attempt

[pquesinb]

Hi. Some players are getting this error message repeatedly while others do not. This is with the latest git master.

Server version is 5.15 and the client version in this case is also 5.15. I am using client version 5.15 as well but I have never gotten this error.

If there is any additional info that I can provide, please let me know. Thanks.

[pquesinb]

After looking into this a bit further, I just updated the Unified Inventory mod, along with a few others. Will post an update if that fixes it.