Here’s what I’m seeing. The chord change is on the bold D (3 in the second measure).
I suspect this is properly counted in 16ths (1e+a…) but I still get lost that way and end up thinking in two measures counted in 8ths.
I hope it helps, Tom. Even if I don’t have it right, maybe it will get you on the right track!
FWIW: I slowed down the YouTube to 50% speed - helped me suss out what she’s doing.
Introductory bar that repeats multiple times.
I tabbed using 16ths, tied when the chord lasts for a longer duration. This allows to see how a consistent Down Up 16th strumming motion allows the whole rhythm pattern to slot together consistently.
Thank you for doing this Richard! Now Tom has the right answer, and I have the relief to know that I wasn’t that far off on the pattern - only one stray U.