Maybe related (from duplicate bug 1914989):

[ 9574.735022] Ubuntu gnome-shell[1681]: Object St.ScrollView (0x5558e598c4c0), 
has been already deallocated — impossible to access it. This might be caused by 
the object having been destroyed from C code using something such as destroy(), 
dispose(), or remove() vfuncs.
[ 9574.743757] Ubuntu gnome-shell[1681]: == Stack trace for context 
0x5558e2b27710 ==
[ 9574.799543] Ubuntu gnome-shell[1681]: #0   5558e37610b0 i   
/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/dash.js:965 
(141015fe76a0 @ 132)
[ 9574.801651] Ubuntu gnome-shell[1681]: #1   5558e3761018 i   
/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/dash.js:494 
(141015fec880 @ 30)
[ 9574.801968] Ubuntu gnome-shell[1681]: st_scroll_view_get_vscroll_bar: 
assertion 'ST_IS_SCROLL_VIEW (scroll)' failed
[ 9574.838268] Ubuntu gnome-shell[1681]: JS ERROR: TypeError: 
scrollView.get_vscroll_bar(...) is null
                                         
ensureActorVisibleInScrollView@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/dash.js:965:34
                                         
_createAppItem/</this._ensureAppIconVisibilityTimeoutId<@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/dash.js:494:21
[ 9574.839595] Ubuntu gnome-shell[1681]: Object St.Label (0x5558e37f19c0), has 
been already deallocated — impossible to access it. This might be caused by the 
object having been destroyed from C code using something such as destroy(), 
dispose(), or remove() vfuncs.
[ 9574.839845] Ubuntu gnome-shell[1681]: == Stack trace for context 
0x5558e2b27710 ==
[ 9574.840822] Ubuntu gnome-shell[1681]: #0   5558e3761138 i   
/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/appIcons.js:1156 
(141015fee970 @ 105)
[ 9574.841718] Ubuntu gnome-shell[1681]: #1   5558e37610a0 i   
/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/dash.js:41 
(141015fe7718 @ 27)
[ 9574.842556] Ubuntu gnome-shell[1681]: #2   5558e3761018 i   
resource:///org/gnome/shell/ui/dash.js:524 (b5ecd81a448 @ 24)
[ 9574.842720] Ubuntu gnome-shell[1681]: clutter_actor_get_stage: assertion 
'CLUTTER_IS_ACTOR (actor)' failed

** Bug watch added: github.com/micheleg/dash-to-dock/issues #1273
   https://github.com/micheleg/dash-to-dock/issues/1273

** Also affects: dash-to-dock via
   https://github.com/micheleg/dash-to-dock/issues/1273
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1912211

Title:
  Can't scroll pages in "Show Applications" when Ubuntu Dock is loaded

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