I have had this issue for a while now and just have not had the time to report it. It only happens when booting and not all the time. The whole computer freezes at this time and you cannot do anything but restart. Usually a reboot fixes the issue and it just boots into Solus Gnome.
System specs below.
OS: Solus x86_64
Kernel: 5.2.13-126.current
Uptime: 25 mins
Packages: 970 (eopkg), 10 (flatpak)
Shell: bash 5.0.7
Resolution: 1920x1080
DE: GNOME 3.32.2
Theme: Plata-Noir [GTK2/3]
Icons: Papirus [GTK2/3]
Terminal: gnome-terminal
`CPU: AMD FX-8350 (8) @ 4.814GHz
GPU: NVIDIA GeForce GTX 780 With driver 430.50
Memory: 1990MiB / 7871MiB