Hi Blankakong, welcome to the forums.
I’ve moved your post out of another’s bug report to prevent confusion if they respond to my post there.
I’m sorry to hear so much was lost when your raft vanished. Thank you for taking the time to share the details or your experience and for sharing the update where you tested checking the cartographer and what method you would consider safe for the raft. Some of this matches up with other reports and the details in the post [Known Issue] Rafts/Gyro Vanishing which I believe you’ve already seen and I will add a link to your comment too.
I will also add these details to my report for the team as it may help to narrow down the cause.