Qt5 Map does not work anymore

JoeCFD

I made a small test code for map display a week earlier. The code worked just fine before. Today, It does not work anymore(whte screen) while no changes have been made.

Grok query results:

Based on recent OpenStreetMap (OSM) announcements and Ubuntu package histories, the most likely culprit is a technical update to the tile.openstreetmap.org raster tile service rolled out on December 7, 2025. Qt 5.15's OSM plugin (in libqt5location5-plugins) has
long-standing issues with HTTPS enforcement and parameter handling, making it brittle to server-side tweaks like this.

Does anyone have the same issue? Qt 5.15.3 on Ubuntu 22.04
The map test cases in Qt6 are all right.

import QtQuick 2.15
import QtLocation 5.15
import QtPositioning 5.15

Rectangle {
    id: mapObject
    objectName: "mapObject"
    width: 500
    height: 500
    visible: true

    // default location: Oslo
    property real locationX: 59.91
    property real locationY: 10.75

    Plugin {
        id: osmPlugin
        name: "osm"

        PluginParameter {
            name: "osm.mapping.providersrepository.disabled"
            value: "true"
        }


        PluginParameter {
            name: "osm.mapping.custom.host"
            value: "https://tile.openstreetmap.org/%z/%x/%y.png"
        }
    }

    Map {
        id: mapView
        anchors.fill: parent
        plugin: osmPlugin
        center: QtPositioning.coordinate(locationX, locationY) //(59.91, 10.75) // Oslo
        zoomLevel: 14

        activeMapType: mapView.supportedMapTypes[ mapView.supportedMapTypes.length - 1 ]
    }
}

JoeCFD

@jeremy_k Tried the same code with Qt 5.15.13 on Ubuntu 23.04 and map can be displayed properly. I am trying to build 5.15.18 on Ubuntu 22.04 and will see if the map can be displayed.

        PluginParameter {
            name: "osm.mapping.custom.host"
            value: "https://tile.openstreetmap.org/  //make small changes
        }

It is likely that the newer versions of Qt 5.15.x fixed some map issues.

jeremy_k

I have the same issue unless the default tile provider (currently Thunderforest) is used.

Ronel_qtmaster

@JoeCFD Also consider using other maps providers like here or mapbox. And make sure your app is deployed and running with openssl included

JoeCFD

@jeremy_k Tried the same code with Qt 5.15.13 on Ubuntu 23.04 and map can be displayed properly. I am trying to build 5.15.18 on Ubuntu 22.04 and will see if the map can be displayed.

        PluginParameter {
            name: "osm.mapping.custom.host"
            value: "https://tile.openstreetmap.org/  //make small changes
        }

It is likely that the newer versions of Qt 5.15.x fixed some map issues.

JoeCFD

@Ronel_qtmaster it is a requirement. I can not change it. Thanks for your reply.