simpleFTPServer and IpCams

Hi, all.
ftp server (simpleFTPServer) on Esp32_Dev_Module with SD card (SD_MMC), espressif/arduino-esp32 v3.1.1 (and v3.0.7).
It works properly! But when my IpCam testing ftp connection geting Error.
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18:11:53.970 -> Authentication Ok. Waiting for commands.
18:11:53.970 -> Command Old: 4 Transfer Old: 0 Data Old: 0
18:11:53.970 -> Command : 5 Transfer : 0 Data : 0
18:11:54.042 -> -P-W-D-
18:11:54.085 -> Command is: PWD
18:11:54.119 -> -C-W-D- -/-
18:11:54.193 -> Command is: CWD
18:11:54.225 -> -C-W-D- -.-/-T-e-s-t-
18:11:54.337 -> Command is: CWD
18:11:54.337 -> utf8_strlen7
18:11:54.378 -> PATH –> /./Test …NOT EXIST!
18:11:54.409 -> -P-W-D-
18:11:54.456 -> Command is: PWD
18:11:54.499 -> -C-W-D- -T-e-s-t-
18:11:54.611 -> Command is: CWD
18:11:54.611 -> utf8_strlen5
18:11:54.611 -> PATH –> /Test …EXIST!
18:11:54.646 -> -C-W-D- -.-/-T-e-s-t-
18:11:54.750 -> Command is: CWD
18:11:54.750 -> utf8_strlen12
18:11:54.750 -> PATH –> /Test/./Test …NOT EXIST!
18:11:54.834 -> -Q-U-I-T-
18:11:54.867 -> Command is: QUIT
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The folder “Test” was created!
But the creation check (command: “CWD ./Test”) processed incorrectly.
“./Test” = “root\Test” but server think “root\Test\.\Test”.
How to fix it?