You might want to download the latest version of wcgstats.
I've fixed a bug where using the option -l (that's ell) would result in an error message and not showing the details of the workunit:

$ wcgstats -wI -m1 -aARP1 -sC -t3 -p1 -l1+3 -rrr -@
...
Skipping 3 entries ...
Showing 1 entry ...
 <4>   ARP1_0033254_126_0  Linux         Dtach  2022-01-29T17:16:25  2022-01-29T20:42:21    0.00/0.00       (*)
 <4>   ARP1_0033254_126_1  Linux Ubuntu  InPrg  2022-01-29T17:16:30  2022-02-06T17:16:30    0.00/0.00       (*)
 <4> * ARP1_0033254_126_2  Linux Fedora  InPrg  2022-01-29T20:45:41  2022-02-06T20:45:41    0.00/0.00       (*)


- Did this show the desired workunit? [Y (yes)/n (no, next)/p (previous)/l (last)/q (quit)/c (change)/= (match)/PAGENUMBER] 

* Then this is the result:
https://www.worldcommunitygrid.org/api/v3/ms/workunit/137480079
sed: can't read /tmp/wcgstats.271370.wingmen.2022-01-31T14:18:47.137480079: No such file or directory 

After fixing the bug, the output now looks like like it should:

Skipping 3 entries ...
Showing 1 entry ...
 <4>   ARP1_0033254_126_0  Linux         Dtach  2022-01-29T17:16:25  2022-01-29T20:42:21    0.00/0.00       (*)
 <4>   ARP1_0033254_126_1  Linux Ubuntu  InPrg  2022-01-29T17:16:30  2022-02-06T17:16:30    0.00/0.00       (*)
 <4> * ARP1_0033254_126_2  Linux Fedora  InPrg  2022-01-29T20:45:41  2022-02-06T20:45:41    0.00/0.00       (*)


- Did this show the desired workunit? [Y (yes)/n (no, next)/p (previous)/l (last)/q (quit)/c (change)/= (match)/PAGENUMBER] 

- Do you need its details? [Y/n/o (omit Results log)/q (quit)] o

* Then this is the result:
https://www.worldcommunitygrid.org/api/v3/ms/workunit/135588148
ARP1_0033254_126_0  Linux         Dtach  2022-01-29T17:16:25  2022-01-29T20:42:21    0.00/0.00       0.0/0.0   
ARP1_0033254_126_1  Linux Ubuntu  InPrg  2022-01-29T17:16:30  2022-02-06T17:16:30    0.00/0.00       0.0/0.0   
ARP1_0033254_126_2  Linux Fedora  InPrg  2022-01-29T20:45:41  2022-02-06T20:45:41    0.00/0.00       0.0/0.0

(*) Because of the width of some long lines I've cut them off at the end.