When searching the action house for "Arcane Dust" this is what shows up:

This is what shows up when just searching for "Dust"

Thanks for the addon

Other issues I am having:

Auction will stop loading sometimes and require a reload.
Auto complete isn't working as intended for new items.

/aux clear item cache
and
/run ReloadUI()
will fix those issues

Thanks clearing item cache worked to fix auto complete and arcane dust issues.

/reload certainly works to fix the auction loading issues, but having to /reload everytime it happens is not really a fix.

reloading was to make the clear cache stick in case you don't exit the client properly afterwards
For the other problem please open a separate issue.