Alem de não Exportar, o aplicativo fecha sozinho

Welcome to the Lightroom Community. I'll help you figure this out. What version of Lightroom Classic & the specific android device you're working on?

Try using Export As & export the image by manually selecting the options in the Export As menu.

Try keeping the device in Flight Mode & without internet when you launch Lightroom & then try using Lightroom. If this does not help, please back up all your Lightroom images before proceeding further.

Let me know how it goes. Thanks!
Sameer K