Preset is being overwritten without prior notice

In the stand-alone app, I changed the amp of a preset and then I closed the app without saving the preset.
Closing down took a long time, about 5-10 seconds.
When restarting the app, the newly selected amp was stored in preset without me saving the preset before I closed the app previously.

Hello, please send an email over to support@neuraldsp.com thank you!