Seems SMB is royally screwed up in Kodi - and in my opinion isn't a LibreELEC issue. My main install of v7.90.007 won't display past the 108th movie on my main Windows server share. It's not the file as I can move it and just the next one pops in, I have also tested this on my Android tablet runnning the latest Kodi nightly and it does exactly the same. No matter what do with the files on the server only 108 of them get listed. If I use FX File Explorer on the same tablet I can see all 229 movie files so I'm pretty sure my server is fine, as it was before.
I also have an issue where after a certain amount of time the SMB connection simply dies, I get an "Invalid argument" and I have to reboot, yet I can watch many films/shows for hours, then come back the next day having left it switched on and I get the same error again. The server never shuts down.
I wanted to mention this here for reference, and I will now go visit the Kodi forums in the hope I can find a solution.