Hi Alexander,
I moved to new version 26.5 and here my results:
Please see:
Test data(input/output/QGIS)
5387 Gml Gpx.zip (97.9 KB)
Thanks,...Bug 5387: Gml to Gpx- Conversion succeeded, output in QGIS -...looked at the GML‑to‑GPX conversion flow in Aspose.GIS 26.5 and...