Hi Alexander,
I moved to new version 26.5 and here my results:
Please see:
Test data(input/output/QGIS)
5475 Gml-Gpx.zip (83.3 KB)
Thanks,...Bug 5475:Gml to Gpx- Conversion succeeded, output in QGIS - Empty...data(input/output/QGIS) 5475 Gml-Gpx.zip (83.3 KB) Thanks, Alexander...