Jxck wrote on Jun 27^th, 2021 at 1:08am:

I've gone into my registry and changed "LongPathsEnabled" value to 1 (to unlock the limit).

Won't make a difference. Even a default MS File Explorer won't work with oversized paths: https://screencast-o-matic.com/watch/cr1uoZV1Aey

You've got 2 options:
a. Shorten a path down to 259 characters or less.
b. Deactivate the software (Start>Captain Sim>777 ACE MSFS2020>DEACTIVATE) and request a refund providing:
- 260RF reference code
- Order number
- Your forum nickname