Ungrouped field instruction:
```
% pandoc -f rtf -t native
{\rtf1\ansi\deff0
{\fonttbl{\f0\froman Times New Roman;}}
{\colortbl;\red0\green0\blue0;}
\deftab720

\trowd\trleft0\cellx2000\cellx4000
\pard\intbl
{{\field{\*\fldinst HYPERLINK "https://example.com" }{\fldrslt {\hich\af0\loch\hich\af0\loch\cf0\f0\cf0\f0\loch
{\*\bkmkstart _dx_frag_StartFragment}{\*\bkmkend _dx_frag_StartFragment}Problem Text}}}}\cell
\pard\intbl Normal Text\cell
\row

\trowd\trleft0\cellx2000\cellx4000
\pard\intbl Simple Text\cell
\pard\intbl More Text\cell
\row
}
^D
[ Table
    ( "" , [] , [] )
    (Caption Nothing [])
    [ ( AlignDefault , ColWidthDefault )
    , ( AlignDefault , ColWidthDefault )
    ]
    (TableHead ( "" , [] , [] ) [])
    [ TableBody
        ( "" , [] , [] )
        (RowHeadColumns 0)
        []
        [ Row
            ( "" , [] , [] )
            [ Cell
                ( "" , [] , [] )
                AlignDefault
                (RowSpan 1)
                (ColSpan 1)
                [ Para
                    [ Link
                        ( "" , [] , [] )
                        [ Str "Problem" , Space , Str "Text" ]
                        ( "https://example.com" , "" )
                    ]
                ]
            , Cell
                ( "" , [] , [] )
                AlignDefault
                (RowSpan 1)
                (ColSpan 1)
                [ Para [ Str "Normal" , Space , Str "Text" ] ]
            ]
        , Row
            ( "" , [] , [] )
            [ Cell
                ( "" , [] , [] )
                AlignDefault
                (RowSpan 1)
                (ColSpan 1)
                [ Para [ Str "Simple" , Space , Str "Text" ] ]
            , Cell
                ( "" , [] , [] )
                AlignDefault
                (RowSpan 1)
                (ColSpan 1)
                [ Para [ Str "More" , Space , Str "Text" ] ]
            ]
        ]
    ]
    (TableFoot ( "" , [] , [] ) [])
]
```

Additionally, ungrouped field result:
```
% pandoc -f rtf -t native
{\rtf1\ansi\ansicpg1252\cocoartf2867
\cocoatextscaling0\cocoaplatform1{\fonttbl\f0\fnil\fcharset0 HelveticaNeue;}
{\colortbl;\red255\green255\blue255;\red0\green0\blue0;}
{\*\expandedcolortbl;;\cssrgb\c0\c0\c0;}
\paperw11905\paperh16837\margl1133\margr1133\margb1133\margt1133
\deftab720
\pard\pardeftab720\partightenfactor0
{\field{\*\fldinst{HYPERLINK "https://example.com"}}{\fldrslt 
\f0\fs22 \cf2 \up0 \nosupersub \ul \ulc2 link}}}
^D
[ Para
    [ Underline
        [ Link
            ( "" , [] , [] )
            [ Str "link" ]
            ( "https://example.com" , "" )
        ]
    ]
]
```