Custom button: Underlay map is not possible to toggle off

[ksp-83]

Description

Custom button: Underlay map is not possible to toggle off

Steps to reproduce

Add a custom button
Add action Change underlay to available map source (tested both Microsoft Earth and Google Earth)
In map, toggle underlay on with custom button = Works well!
In map, toggle underlay off with custom button = Does not work

Actual result

In map, toggle underlay off. Underlay map remains.

Expected result

In map, toggle underlay off. Underlay map should disappear.

Your Environment (required)

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OsmAnd Version: 4.9.3
iOS version: 18.3
Device model: iPhone 15 Pro Max
Crash-Logs: ?

[yuriiurshuliak]

The bug has been reproduced using the steps you provided:

1. Added a custom button.
2. Set the action to change the underlay to an available map source (tested with Microsoft Earth and Google Earth).
3. Used the custom button to toggle the underlay on – works as expected.
4. Attempted to toggle the underlay off – the underlay remains visible.

Actual Result

The underlay map does not disappear when toggled off.

Expected Result

The underlay map should disappear when toggled off.

OsmAnd 4.9.5 (4982)

IMG_6154.MP4