Double Post Showing Why ?

[ForceHSS]

<a href="https://vborg.vbsupport.ru/showthread.php?t=233234" target="_blank">Try this</a>

[Zachery]

Originally Posted by ForceHSS

Try this

This modification is not required for vBulletin 4.2.x Onwards.
anyway, the issue normally comes from third party addons, or the skip errors line not being included in the config.php file.

You should also try enabling plugin compatibility mode.

[ForceHSS]

Originally Posted by Zachery

This modification is not required for vBulletin 4.2.x Onwards.
anyway, the issue normally comes from third party addons, or the skip errors line not being included in the config.php file.

You should also try enabling plugin compatibility mode.

The op never said what vb version they are using

[cellarius]

Originally Posted by ForceHSS

The op never said what vb version they are using

And it's totally besides the point, since the addon you linked to will do nothing to solve the problem of the OP. It will just merge the double posts into one, not prevent it.

[ozzy47]

Once again:

That is not going to help, that mod is if a user actually makes two different posts, the issue the OP is having is when a user makes a post, it is made twice, the same exact post, it is a issue with Ajax, or a server bog down issue.