I've just downloaded the latest version (5.0.0 beta) of easyspin because apparently the old version expired today. I think this new version has a bug: I'm simulating second derivative cw-X band spectra and the simulation doesn't make any sense unless I have the lw above 0.6 for the Lorenztian. The Gaussian lw doesn't make any difference. This wasn't happening with the old version. I have uploaded 3 pictures with different line widths for the Lorentzian (0.6, 0.5 and 0.3). Everything else stays the same, the Gaussian lw is fixed at 0.3. Please let me know if you need more info and hope you'll be able to fix this.
Thanks
Luisa