On my laptop I use W10, dropbox and boxcryptor. (all latest versions)
When I save a file in my dropboxfolder on my laptop , it is being synchronized with my dropbox in the cloud and therfore on y other divices
However when i save a file in my BOXCRYPTOR folder inside my dropbox folder (voormij.bc_imported), it is NOT synchronized in the cloud.
When I save a file on my second laptop, Linux LXLE anywhere in the dropbox folder, also the boxcryptor one, the file is being synchonized with my dropbox in the cloud, but not to my windows laptop.
As you can understand, this is a very serious problem.
I hope you van solve this