I believe the clock Sync source is "Internal"...

- ClockLock.JPG (21.12 KiB) Viewed 811 times
I'm on DR Studio 17.2.1 (build 12)
- System specs...
Device name Arcana29
Full device name Arcana29.ARCANASTUDIOS.local
Processor Intel(R) Core(TM) i7-5960X CPU @ 3.00GHz 3.00 GHz
Installed RAM 64.0 GB
Device ID D969A947-63A4-4FE6-98A1-78F96362336D
Product ID 00330-71304-94815-AAOEM
System type 64-bit operating system, x64-based processor
Pen and touch Pen support
Edition Windows 10 Pro
Version 20H2
Installed on 8/27/2020
OS build 19042.985
Experience Windows Feature Experience Pack 120.2212.2020.0