Glad you could solve your problem. You will check in Lightroom, there is an option to automatically apply the filter when a specific lens is detected (that could explain why the thumbnails look ‘straight’).
The amount of distortion that is applied in Lightroom filters is quite conservative to :
1) avoid unnecessary correction
2) preserve a maximum of pixels in the final scene, as the final result, after lens correction is applied, is no longer a rectangle scene, but a ‘waved Barreled’ image that is cut afterwards with a rectangular mask... losing some portions of the image.
I see you took multiple shots of the same image to make an HDR final image. Great !
That’s why I asked Parot (and lots of others have) to include a ‘DNG only’ option ... but they are still not sensitive to our plea... they say it does not take much longer to have both jpeg and DNG and ‘go buy a cheap larger SD card’ ...
So if they read this forum, let’s all insist to have this easy to implement option (we have been good boys haven’t we ?)