The last files reached in your logs are 01.flac to 04.flac in Dragon Ball Heroes - Ultimate Mission X (2017). The logs don’t yet show why progress stops there.
Could you try syncing only that folder and let me know whether it completes? If it also gets stuck, please upload the folder, including any CUE or lyrics files, to https://upload.symfonium.app. Add dirkdigg and a description of the problem to the upload so I can find it.