FYSETC-SD-WIFI

Hello there.
I have a Creality Ender 3 V3 SE and I really enjoy printing…

I bought this FYSETC-SD-WIFI card: https://bit.ly/4gHLUOp
to avoid having to move the SD card from the PC to the printer every time.
This is the SW github: GitHub - FYSETC/ESPWebDAV: This is the firmware for FYSETC SD-WIFI module.

Problem:
After copying a file via Wifi to the SD, the printer no longer sees the list of files and
I have to turn the printer off and on again or remove and put the SD back.

I contacted FYSETC support but they didn’t answer me.

I tried to send the gcodes M22-M21-M20 but without solving.

What do you think? Could you help me?

P.S.
I made some changes to the SW and flashed the WebDav Server function with Arduino,
the gcode files (STL) are copied via WiFi to the SD but in order to print them I have to turn the printer off and on or remove and reinsert the SD, I have already tried the various gcode commands M21, M20 etc… but nothing. I also have OctoPrint in Docker but it is slow in copying the STL files and I would not like to use it.

Thanks and Merry Christmas.
Max