the-J ...can I do anything about it?
If you're more interested in screen area capture than in gnome-screenshot fix, then a workaround to capture an area is proposed in the same thread, indicated by @EbonJaeger.
The workaround uses
imagemagick package, which should be installed in Solus Gnome by default. Additionally, install also
sudo eopkg install xclip
After that, replace the
gnome-screenshot -ac command you use to capture a screen area with this one:
import - | convert - png:- | xclip -selection clipboard -target image/png -i
Tested and works in Solus Gnome.