Some custom keyboard shortcuts not working

Hello there! Some time ago (not really sure when, some months ago for sure), the custom key combos I use to sort files in Thunar stopped working. The only other custom combo I use (for a custom action) still works.

These are the modified lines in ~/.config/Thunar/accels.scm

(gtk_accel_path "<Actions>/ThunarActions/uca-action-1568964076674115-1" "<Primary><Shift>e")
(gtk_accel_path "<Actions>/ThunarStandardView/sort-by-name" "<Primary><Shift>1")
(gtk_accel_path "<Actions>/ThunarStandardView/sort-by-size" "<Primary><Shift>2")
(gtk_accel_path "<Actions>/ThunarStandardView/sort-descending" "<Primary><Shift>5")
(gtk_accel_path "<Actions>/ThunarStandardView/sort-by-type" "<Primary><Shift>3")
(gtk_accel_path "<Actions>/ThunarStandardView/sort-ascending" "<Primary><Shift>6")

Here's the full accels.scm.

I'm following the instructions at the official Thunar FAQ.

The strangest thing is that the combos show in Thunar itself! See this image.

But they don't work :( Only the custom action does...

ToZ sent me here.

OS: Ubuntu 18.04.5 LTS x86_64

Xfce 4.14 from Xubuntu QA Staging PPA

Thunar 1.8.15