Version: rigctld Hamlib 4.6~git 2024-09-29 OS: Windows 10 x64 Radio Icom IC-707 via XGGComms USB-Digimode-4 on COM4. Very brief tl;dr: There seem to be a couple of mistakes in the IC-707 rig code.
I've encountered the same problem as well, there seems to be something in the Gsplat 1.0 code that assumes that images have been downscaled to at least 1920x1080. When using resolutions above that, it ...