Error Exporting GPX

Hi all! Happy New Year. I've been working exporting GPX files with Basecamp over years and no problem. But, since last upgrade (I've made it today) I can't export GPX files or whatever extension. I've tried with several tracks, export specific track and exporting user data, try to change folder to export, extensión, name, and nothing works. Close and reopen basecamp, uninstall and reinstall, reboot my Mac have been tried too, but still not work. When I click Export Button in export modal it frozen and crash the app and nothing works.

MACOS Catalina 10.15.4

Basecamp Versión 4.8.11 (4.8.11)