Dynamic grid labels in layout doesn't update automatically

[qgib]

Author Name: Klas Karlsson (@klakar)
Original Redmine Issue: 18210
Affected QGIS version: 3.4.3
Redmine category:map_composer/printing

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I've got a custom format grid label, offset 500 m to my 1000 m UTM grid, that in 2.18 dynamically updated a index-grid for my map when I panned the map contents (image).

In QGIS 3 I need to manually open and confirm the settings for the custom format coordinates to update to a new extent after panning the map.
The labels used to update when ever the map extent was changed...

I also use the same x_min/y_min expression to print corner labels and that updates dynamically as it should.

Code for custom label (map item id is "main"):

@
CASE
WHEN @grid_axis = 'y'
THEN substr('ABCDEFGHIJKLMNOPQRST',
(@grid_number-to_int(y_min(map_get(item_variables('main'),'map_extent'))/1000)*1000+500)/1000 , 1)
WHEN @grid_axis = 'x'
THEN (@grid_number-to_int(x_min(map_get(item_variables('main'),'map_extent'))/1000)*1000+500)/1000
END
@

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• Skärmbild från 2018-02-25 16-58-02.png (Klas Karlsson)
• index.png (Klas Karlsson)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• priority_id was changed from Normal to High

[qgib]

Author Name: Paolo Cavallini (@pcav)

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Could you please check again on current release?
Thanks.

[qgib]

Author Name: Klas Karlsson (@klakar)

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Tried on QGIS 3.4.3...

Still a problem! Panning the map doesn't update the custom grid...

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• 14032 was configured as index.png

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• index.png (Klas Karlsson)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• version was changed from 3.0.0 to 3.4.3

[Pedro-Murteira]

@klakar Hello, is this still valid on recent releases?

[klakar]

Yes! Same problem in 3.24.1

[TeoGoddet]

I got this bug in 3.26 also