Until now, installing and configuring autofs seems to have resolved the issue. I used this guide to configure autofs: Mounting network shares with autofs (alternative to fstab).
I tested with two remote movies, and each time after pressing the stop button the Kodi screen came back after a short black screen. (https://paste.osmc.tv/dihavohepa).
So far, thank you very much, Sam and Fzinken