From @masak

<masak> m​: say 1 R?? 2 !! 3
<camelia> rakudo-moar 9ccd84​: OUTPUT<<===SORRY!=== Error while
compiling <tmp>NLCannot reverse the args of because conditional
operators are too fiddly [...]
<masak> looks like we have a regression in that error message...
* masak submits rakudobug
<jnthn> regression or was it ever right? :)
<masak> or never right, right.

Note the two spaces between "of" and "because". There should be
something there, probably "?? !!".

From @zoffixznet

Happens with 'S' and possibly some other ops. The missing bit is the `$.operator`, which is obtained from `$op<OPER><sym>`

$ ./perl6 -e '1 S?? 2 !! 3'
===SORRY!=== Error while compiling -e
Cannot sequence the args of because conditional operators are too fiddly
at -e​:1
------> 1 S?? 2 !!⏏ 3

The RT System itself - Status changed from 'new' to 'open'

From @zoffixznet

Fixed in rakudo/rakudo@c98ab93552

Tests needed

From @zoffixznet

Tests added in Raku/roast@7ae8030be1

@zoffixznet - Status changed from 'open' to 'resolved'