Running wireshark as root - plugins not working

edit

I am trying to install the mavlink disector on my wel ubuntu machine

I added it to the

 xxxxx@MAXWELL:~/dev/udp_test$ ls -alrt ~/.local/lib/wireshark/plugins
total 2980
drwxr-xr-x 3 xxx xxx 4096 Jul  7 23:20 ..
-rw-r--r-- 1   xxx xxx 3036602 Jul  7 23:21 wireshark.lua
drwxr-xr-x 2 xxx  xxx 4096 Jul  7 23:21 .

but it is not working. I checked the folder section of help

it indicates that the folder is /root/.local/lib/wireshark/plugins

xxx@MAXWELL:~/dev/udp_test$ sudo ls -alrt /root/.local/lib/wireshark/plugins
[sudo] password for xxx:
total 2976
drwxr-xr-x 3 root root    4096 Jul  7 23:51 ..
-rwxr-xr-x 1 root root 3036602 Jul  7 23:53 wireshark.lua
drwxr-xr-x 2 root root    4096 Jul  7 23:53 .
xxx@MAXWELL:~/dev/udp_test$

it still isnt working.

I defined XDG_CONFIG_HOME=/home/xxx/.local/bin and re-installed wireshark - still no luck.

(I am am only an occasional user of linux)

PS - I am collecting data, it just isn;t being fully decoded. I have had it working in windows.

Frame 56: 75 bytes on wire (600 bits), 75 bytes captured (600 bits) on interface lo, id 0