Glad you got it fixed. Are you familiar with the zipalign command for the command line?
zipalign -v 4 your_project_name-unaligned.apk your_project_name.apk
I use this to zipalign my project but it doesn’t allow me to use the same project name for the “your_project_name.apk” term with the “your_project_name_unaligned.apk” term. Do file names for the apk and obb files have to be the same?