Power Platform Community Forum Thread Details

I've created a loading spinner to become visible while my gallery loads however it does not appear. What have I done wrong? My app on start code is;

Set(gblShowSpinner,true);

Concurrent(
ClearCollect(
colTabs,
{
ID: 1,
Name: "All Signals"

},
{
Name: "Partially Prepped",
ID: 2
},
{
Name: "Fully Prepped",
ID: 3

}
),
ClearCollect(
colNav,
Table(
{
Title: "All Signals",
Screen: 'Main Screen',
Icon: LogJournal
},
{
Title: "Work Bank",
Screen: App.ActiveScreen,
Icon: Database
},
{
Title: "New Prep Sheet",
Screen: FormScreen,
Icon: Add
},
{
Title: "Tools",
Screen: App.ActiveScreen,
Icon: Tools
}
)
),
Set(
varOpenMen,
false
),
Reset(TimerSearch_1);
Set(
varOnStart,
true
),
Set(
varTabSelected,
1
),
Set(
varFormData,
Defaults('Signal Prep Sheet')
),
Set(
varFormMode,
FormMode.Edit
));

Set(gblShowSpinner,false);

My loading spinner consist of an image and a rectangle which I've placed into a group with the visible property being the variable (gblShowSpinner) an placed on the top of the screen.

I'm simply trying to show the spinner while the gallery is loading the info from my Sharepoint list. My gallery item code is

SortByColumns(
Filter(
[@'Signal Prep Sheet'],
StartsWith(
'Signal ID',
TextInputSearch_2.Text
) &&
(
varTabSelected = 1 ||
(varTabSelected = 2 && 'Is another prep shift required?'.Value = "Yes") ||
(varTabSelected = 3 && 'Is another prep shift required?'.Value = "No - Fully Prepped")
)
),
"Title",
If(
varSortOrder,
Descending,
Ascending
)
)