Third Party plugins not showing up

I have a few third party plug in for Final Cut. I have used the company"s installer so I sure they are installed correctly. ( FxFactory as an example) They are in Movies/Motion Templates/Effects/ or /Generator or /Transitions. The third part plug "name" show up in the Effects and transitions, but the actual effects and transitions are not there. The third party plugins for Generators show up and I am able to use them. So, something is blocking these third party plugins for effects and transitions. All the FCP builtin Effects and transitions show up and work fine. Any thoughts what is blocking these plug ins? 

You might want to try looking at the "diagnostic/repair tools" that are included with various plugin managers. For example, in FXFactory, in the Actions menu there should be three "Repair..." items. You might try choosing all three. MotionVFX's minstaller has some similar functionality in its Settings window.

Quit FCP before doing any of this stuff. It's probably good to restart your computer, perhaps even using Safe Mode when restarting, and then restart after logging into your account. This should help reset things. Then, see if the plugins work.

The plugin makers should be able to provide better support than we can here...