Premiere Plug in Resolution Problem

Hi, so I downloaded and installed latest version of Insta360 studio software, GoPro FX Reframe Plugin, followed the instaone tutorial, opened a 3840x2160 project, imported my 5,7K and 4K *.insv files from my InstaOne R camera, but when I drag the media into the timeline, they just show up as 736x368 media, even after applying GoPro FX Reframe plug in. See scren capture attached. Why is that? What am I doing wrong and how can I have them fill up the Program resolution and window? Thank you in advance for your answer.