Hello max3333,
when you save a file for the Cloud, you should save it to the Boxcryptor drive and not directly in the sync folder (in this case Google Drive).
So, all operations should go via the Boxcryptor drive, otherwise the file(s) will be unencrypted.
Second question: when encrypting (let's say, again Google Drive) you will always see the "unencrypted" version of the file on the Boxcryptor drive a s long as Boxcryptor is started and you're signed in.
In turn, the .bc (also encrypted file) will be in the sync folder, and so in the Cloud.
Best,
Yasmin