Im try a try, and i found one thing. The scraper (included with batocera) dont generate the gamelist.xml. (only generate parcial, with errors etc) and dont save.
I erased the gamelist and download images, and update game list, and batocera 5.19 create a new archive gamelist.xml. But the scraper not run well.
I going to try , use xml scraper v2 on windows and i will coment here the results..