SD Card weird behavior

I had a strange problem with an SD card that had previously worked correctly. At one point I couldn’t see the contents of the card from Bambu Studio. Printing directly from Bambu Sudio worked correctly, and when I printed with Timeplapse enabled, everything was fine. Sending (without printing) also worked. I only couldn’t see the contents of the card from Bambu Studio.

However, everything was fine from the printer side, I could read all contents of the card without any problems.

After removing and formatting the card, I no longer have any problems, but I previously checked the Network Test option in Bambu Studio and both when the problem occurred and now that it is gone, I have errors in the test at two points.

Screenshot 2025-06-15 233557

Can someone tell me if there is a problem here? What are these two errors caused by?

I find these tests rather unreliable.
They always fail if there is the slightest hickup in the network…
As long as all works from the printer and Studio I would not worry.

But if you want to format SD cards properly download the tool from Scard.org - these guys define the standards and Windows just isn’t well suited for SD cards…