Since the march update, I started seeing the sad face on various content with my Vero 4k+. I thought it was corrupt files possibly, but it was not and I can reproduce it. It appears to only happen with dvds I have ripped as full disk copies. I navigate to the video folder and select the first .ifo if the disk has ads, it will play those but once it goes to the dvd menu, I get a black screen with possibly some music and then the sad face. I have re-ripped disks (since I own them) and it still happens. I did a complete reload with usb and still the same. Also tried switching to wireless instead of wired (all content on nfs) but no difference. All other content plays fine. I would rip just the movie, but it’s not movie content, they are tv series sets with multiple episodes on each disk, and 3 months ago, this worked.
My setup is a Vero 4k+ using wired ethernet and two fstab mounted nfs shares (ro) where the content resides.