GoPro FX Reframe losing video source settings in Premiere

Hey there, did anyone notice the same thing and if so, how did you solve it?
As recommended by the manufacturer I installed Insta360 Studio and the GoPro Fx Reframe Plugin in order to edit my insv files with Premiere Pro 2021.
But: Premiere doesn´t seem to save the source settings for the imported clips which I set via the dialog window of the plugin - which means that after reopening the Premiere project I have to define the correct stitching settings again for each and every clip within the project.

Apart from that problem, is there a way in general to pre-define the default source settings for FX Reframe in order you don´t have to manually set them for any imported file? Right now I have to switch on the Lens Guards and Chromatic Calibration options for all my files, and I don´t even see an option to select all imported files and batch set or sync these parameters throughout the whole lot of files.

I´m on the latest version of Adobe Premiere Pro 2021, FX Reframe for Mac v1.2.1.133, macOS Catalina 10.15.7.

Any hints appreciated, thanks so much in advance!
Cheers, Toby