GARoss

Hi. Don't know if you have found a fix yet but with my 2018 LG C8 I've needed to delete & reinstall YTTV app for WebOS more than once since purchase in August 2018. Not sure but it seemed to happen after the LG had an OS update. HTH

2 hours ago, Vietxitin said:

The NTFS HDD still support in old TV C7 but we would like web OS support more for exFAT

Absolutely! There's no reason not to & plenty why it should. NTFS is Microsoft & excludes many who use Mac, Linux, etc. That's why it surprised me that WebOS accepted NTFS. ExFat is universal. Make it happen WebOS!

I switched for a 2015 Samsung LED to a OLED C8 & tried to use my USB drive which was formatted in exFat & had lots of video data on it & naturally didn't work. The drive was 8Gb & 2 formats were offered; exFat & NTFS. To my surprise, my C8 accepted NTFS. I really didn't think NTFS would work as it's a Microsoft file system & not as universal as exFat should be.