That's the answer Alex. I found it a few minutes after I'd emailed the mailing list. There's ~60 users. Thanks for the reply.
On Tue, Nov 5, 2013 at 12:03 PM, Alex Vandiver <ale...@bestpractical.com>wrote: > On Tue, 2013-11-05 at 11:35 -0500, Parish, Brent wrote: > > Add this line into RT_SiteConfig.pm: > > > > Set($AutocompleteOwners, 0); > > RT 4.2 did not change this default; if $AutocompleteOwners was not set > in your 4.0 installation, it will not be set in your 4.2 upgrade. > > You are likely running into a performance optimization in RT 4.2; > namely, configurations with large numbers of possible Owners (generally > due to configuration errors) can cause extremely long load times on > Update pages. RT 4.2 switches to the autocompleter when it finds more > than 50 possible owners, rather than attempting to render a very large > drop-down. This is irrespective of the value of $AutocompleteOwners. > > How many potential owners exist in this queue? > - Alex > > >