Waypoints not transferring to WT 787-10 FMS

Here are the reports of the 787-10 freezing.

plus my own report from this forum in Nov '23: Navigraph data causing 787-10 freeze at SKLC (note: I no longer overclock since this report)

I have tried disabling every addon, updating drivers, reinstalling, integrity check, beta version, removing all data from /Community with no change.

The strange thing is it always happens in the same places, and always when climbing out, never after having reached cruise altitude or on descent/landing.

Here are the airports I have had this happen, again always on climbout: SKLC, CYYC, PACV, PWAK.
When I switch to another aircraft I am able to use the same file from Simbrief downloader without issue.

i9-13900kf processor, 4090 nvidia card & 4800mhz ram