If keyword has a long list of arguments some of them are moved into keyword itself

[povar81]

RIDE v2.0.8.1 running on Python 3.7.4.
my keyword in text edit:
aar_i_3 subscr_id ipv6
[Arguments] ${msisdn1} ${subscrtype1} ${msisdn2} ${subscrtype2} ${msisdn3} ${subscrtype3} ${req_access_info} ${af_req_data} ${appid} ${apn} ${Media-Type} ${Flow-Status} ${Flow-Usage} ${sessionid} ${MRBULd} ${MRBDL}
... ${MinRBU} ${MinRBD} ${ip_v6}

in grid editor last 3 arguments are not in arguments but in the keyword:

and when this keyword is called from a case the last cell on first line is shown in red as an error:

and second line is shown as unknown:

the same keyword on
RIDE 1.7.4.2 running on Python 3.7.4. :

and how it's shown when called from a case:

[povar81]

when I run it - it works normally, passes, so the problem is only in how it's shown in RIDE.

p.s.
I get it - this keyword has too many arguments (I could've used test/suite variables instead or some other approach), but in this specific case I need this many arguments (I think it's a longest keyword I have anywhere)