UBBCode is disabled on new accounts as an anti-spam measure (no clickable links, etc); editing the post now will let you use it.
Both the location and playtime should change if you make new saves, rather than overwriting an existing one. That should also be a little more reliable, as it is one less step in the save process, and safer since crashes during the save process would be less likely to affect previous saves.
Reaper's Coast is 3 or 4 times the size of Fort Joy. Arx is also quite large, with lots of NPCs and various behaviour scripts running in the background, etc. There were some fixes and memory optomizations in the first update, that should have helped with stability issues in Arx.
Can you check if new named save have the same chance of crashing?
Does the chance of crashing change with either fairly short playtimes, or fairly long?
Are saves during combat (with lots of surfaces, etc, around) more likely to crash?
Since you didn't mention Steam, I'm assuming you don't have that version, as well, with your account linked?
The only other way to get saves off the Switch, for the programmers to check out, would be if you have Nintendo's extra Online service, and would be willing to PM me or email supportdos2@larian.com with your account email/password to retrieve them from cloud storage (you could change the password temporarily, and switch it back once the saves have been transferred).
Otherwise I will create a bug report for this, and hopefully the description will be enough to help track down the issue or reproduce the problem.
