I tested it on my Mac Pro and there, it works fine under PTHD2018.1...
On my Windows HDX Machine both aax DSP and Native are crashing ProtoolsHD...
So it is a problem of the Windows version of the plugin.
The latest Windows version is
MDW EQ 5.0.2.19
and the latest Mac version is
MDW EQ 5.0.2.34
I hope there will be an update for Windows. For now I must go back to 12.8.3