Pro Tools developer version question

[lalalandsynth]

When I add a HISE plugin to Protools Developer Version (Win) it will then be accessible when I open up ProTools.
But , I can only do this once, if I shut down protools and reopen the plugin is now not available.
This does not happen to any free test plugin I have installed, only the ones I build?

Is anyone familiar with this and is this some sort of limitation of the Developer version and if so, is there a way around this.
Is there some sort of manual plugin scanning in ProTools ?

EDIT: Now for some reason one of the plugins I built is still available on opening but the other one will not appear even though I deleted it and built it again.

[Lindon]

@lalalandsynth guerssing here, but this might be a plugin code problem - you gave each one a unique code right?

[lalalandsynth]

@Lindon Ah , I neglected that, let me try again. Thanks!

SOLVED> That was indeed the problem :)