The possible bug crashing in Luculla Forest (related to trying to destroy troll droppings) will be fixed in the upcoming patch (no ETA yet, but the patch itself done or pretty much done). Some for the possible crash with trading or teleporting to certain regions, if you do a lot of trading with looted or crafted items.
The crash when saving could be an issue in the save itself. I'll check if that is a known issue, but in the meantime, please email supportdos@larian.com, with a description and your latest save.
You would first need to transfer a save to a USB flash drive to get it onto a computer: in the Saved Data in System Storage section of the Settings menu, click Copy to USB Storage Device, select the relevant save and Copy. From there you can copy it to email or upload to Dropbox or Google drive, etc, and provide a link.
