This is a known issue that's been fixed on a dev branch that hasn't been put onto the workshop yet.
https://github.com/SageJFox/jazztronauts/tree/sceneroots

Note that other parts of this branch are still in dev so they might be a little incomplete and/or goofy.

Also note that a different bugfix in this requires this branch to convert how your save data is stored, so if you wanted to switch back to the workshop version the best time would be immediately before starting a new run (NG+ or full reset). It should be compatible either way, but you'll lose out on a lot of brush money if you swap back to the workshop version mid game.

Otherwise if you don't want to bother with github downloading and you're running the game yourself, you could turn on sv_cheats and then use

引用自 Sierra Foxtrot：

Otherwise if you don't want to bother with github downloading and you're running the game yourself, you could turn on sv_cheats and then use

give weapon_propsnatcher; give weapon_buscaller

Thank you, I'll give this a try the next time a map gives me trouble!