Lito Yap
Ansys Employee

@theo.martel,

Typically the kill command [CTRL+C] terminates the API process. Do you see any running “fdtd” processes running in the background after “killing” the lumapi script?  

Can you try the latest release, Lumerical 2022 R2.1. We run our tests and reproduction of the issue with the latest release available on our website. Just want to verify if this is happening to all the versions of Lumerical installed on your Linux machine. Before running a different version or switching between versions, remove/delete your Lumerical preference.ini files first.