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)