Dietpi v8.18.2 cannot load any overlays

Troubleshooting
1

Hello,
I am just trying to load ANY overlay in Dietpi v8.18.2 on a Odroid C4 :

Thus, my file “/boot/dietpiEnv.txt” looks like this:

 %
 [main]
 rootdev=UUID=b4e5d0d0-f9ef-42af-a1f4-5b146974a264
 rootfstype=ext4
 # The init system logs to the console defined last.
 consoleargs=console=ttyAML0,115200 console=tty1
 usbstoragequirks=
 extraargs=net.ifnames=0
 docker_optimizations=off
 overlay_path=amlogic
 overlay_prefix=meson
 overlays=uartC
 user_overlays=uartC

But it fails to load ANY overlay. It does not load the uartC overlay at all.

root@DietPi:~# dmesg | grep -i overl
root@DietPi:~#

Nothing. What am I doing wrong ?

I see the proper files :

root@DietPi:~# cd /boot/dtb-6.1.11-meson64/amlogic/overlay/
root@DietPi:/boot/dtb-6.1.11-meson64/amlogic/overlay# ls
meson-fixup.scr                    meson-i2cB.dtbo   meson-w1AB-gpio.dtbo
meson-g12-gxl-cma-pool-896MB.dtbo  meson-uartA.dtbo  meson-w1-gpio.dtbo
meson-i2cA.dtbo                    meson-uartC.dtbo  README.meson-overlays

but they never get used. (???)

3

I can imagine that the second attempt overrides the first loaded overlay, but there is no overlay file in /boot/overlay-user/.
But in the past there were already some problems with odroid and broken overlays.

4

I guess this one is similar to the other topic you create Dietpi v8.18.2 + Odroid C4: Same old problems: a) Video bug, b) missing Overlays, c) Boot speed