Hi all, just had a smoke test done. It now doesn't appear to be the windscreen leaking, I've attached a video.
Below the scuttle on the passenger side on the bulkhead tucked right back near the dash, there's factory sealant (I guess sealing a bung), it looks like the sealant has a hole/failed.
I'm now gonna apply sealant around it, fingers crossed that solves it but I'll update.
20240928_093953.mp4