0) Have you read the "READ ME FIRST" thread in its entirety AND TRIED THE SOLUTIONS THERE before posting: Yes
1) Operating System: Windows 10 19044.2364
2) OS Type: 64bit
3) rekordbox version:6.6.8
4) Using LINK: No
5) Source Hard drive / Flash drive / SD card file system: NTFS on M2. Samsung 970 EVO Plus
6) Export Hard drive / Flash drive / SD card file system: n/a
7) Have you scanned your files for errors: Yes
8) Is rekordbox crashing at all: No
8b) If not crashing, are there any error messages: Yes
9) Are you able to repeat / reproduce the problem: Yes
9a) If yes, can you do it consistently: Yes
10) Does the problem occur with one specific song: No
10a) If yes, please post a link to it:
11) Any other notes regarding your setup only: n/a
12) Provide as much detail of the issue here:
When enabling Lyric or Video an error message appears.
Rekordbox and Lyric/Video will operate fine after clicking on OK (it gives 2 pop-ups)

All drivers are up to date. Same with BIOS.
I haven't used Video/Lyric since 6.6.4 so I can't say when this started to happen.