Geomap: [.WebGL-0x23b4096da300] GL_INVALID_OPERATION: Insufficient buffer size

### What happened? With latest version of Grafana's docker (12.0.1), I'm having issues with Markers layer in Geomap. Each time I'm refreshing the map, I have this error: [.WebGL-0x23b4096da300] GL_INVALID_OPERATION: Insufficient buffer size The markers circles are flashing each time the refresh operation is launched. Sometimes, the map is also flashing, when i have some more layers on it, like route layer and some markers layers. ### What did you expect to happen? No error, no flashes on the map ### Did this work before? Previous version I was using was 11.2 and the dashboards were working as expected. ### How do we reproduce it? 1. Get latest Grafana version 2. Setup a Geomap getting lat and lon from a query using a DB 3. Draw them using the markers layer ### Is the bug inside a dashboard panel? | Key | Value | |--|--| | Panel | geomap @ 12.0.1 | | Grafana | Grafana v12.0.1 (80658a73c5) // Open Source | <details><summary>Panel debug snapshot dashboard</summary> ```json { "panels": [ { "id": 2, "type": "geomap", "title": "Reproduced with embedded data", "gridPos": { "h": 13, "w": 15, "x": 0, "y": 0 }, "fieldConfig": { "defaults": { "custom": { "hideFrom": { "tooltip": false, "viz": false, "legend": false } }, "mappings": [], "thresholds": { "mode": "absolute", "steps": [ { "color": "green", "value": null }, { "color": "red", "value": 80 } ] }, "color": { "mode": "thresholds" } }, "overrides": [] }, "pluginVersion": "12.0.1", "targets": [ { "refId": "A", "datasource": { "type": "grafana", "uid": "grafana…