Fixed with Read/write tracks using file streams · OpenDroneMap/OpenSfM@6d85093 · GitHub
If you want to jump ahead and test before an official update is released for WebODM, you can simply replace this file C:\WebODM\resources\app\apps\ODM\SuperBuild\install\bin\opensfm\opensfm\dataset.py with this one: https://gist.githubusercontent.com/pierotofy/28626fd81bd14650820d3d222aca18d0/raw/51bdeea7ae7c896fcdaf0298d6917fbb3299c436/dataset.py
And re-run the dataset. It should work (or at least, process further than where it’s currently failing).