Please try the attached pattern derived directly from your DWG (via DXF).
Problem: Attachment file is not being uploaded unfortunately. Will revisit later.
direct copy:
;-------------------------------------------------------------------------------
; Written by HatchKit 4 Standard Edition
; HatchKit 4 Standard Edition (c)1990-2021 Cadro Pty Ltd
; www.hatchkit.com.au/
;-------------------------------------------------------------------------------
;-Date : 2021/04/15
;-Time : 14:15:28
;-HatchKit 4 Version : 4.1.3.3013
;-HatchKit 4 Output Filetype : AutoCAD
;-------------------------------------------------------------------------------
*Timber,DXF Entity Section
35.2727944814,78.954,79.327,-342.047063496,4.93687175,18.463,-1824.41564488
38.3251462221,64.47,67.877,-3593.0198759,1.76592894,18.463,-5133.53109869
41.3774979628,50.616,55.673,-8641.95783633,.95571779,18.463,-9501.1416604
44.4298497036,37.432,42.749,-2629.88344459,3.29071697,18.463,-2746.30091409
47.4822014443,24.954,29.141,2229.13781266,3.84857952,18.463,-2345.54051737
49.108264692,51.699,78.901,1150.73198284,1.92038131,23.625,-4714.00469098
50.534553185,13.219,14.888,1628.50252239,1.57760827,18.463,-5748.52977874
52.1713570857,37.209,60.241,13347.4009238,.651714037,23.625,-13936.5707554
53.5869049258,2.2597,.02964,478.917012863,2.60981124,18.463,-3467.63415575
55.2344494795,23.738,40.834,345.693615872,11.0347596,23.625,-800.865598324
58.2975418732,11.323,20.734,5911.32985548,1.27018977,23.625,-7139.12796943
61.360634267,0,0,989.6222288,5.1566354,23.625,-1740.71449304
89.7219498815,84.975,10.151,96.7576642525,.516629782,14.746,-17595.6509415
94.1986939443,85.047,24.896,-3880.62729239,1.7693602,14.746,-5127.2571043
98.6754380071,83.967,39.603,-3131.77842611,1.8226313,14.746,-4976.96866322
103.15218207,81.743,54.18,-2085.61689427,3.6628192,14.746,-2469.1482362
107.628926133,78.388,68.539,-4669.03981661,1.8290634,14.746,-4959.41465231
112.105670196,73.922,82.593,-1252.67790176,1.5838157,14.746,-5729.64434681
116.505761863,76.735,3.2658,-215.140272294,2.2738957,14.54,-3986.54731738
120.654317683,70.246,16.277,-2585.64225363,1.97300327,14.54,-4596.73240219
124.802873504,62.833,28.786,-824.490131773,.8771163,14.54,-10358.1500319
128.951429324,54.534,40.725,-8830.16609782,.9499693,14.54,-9562.66945788
133.099985144,45.394,52.032,-3443.06587809,2.542803,14.54,-3563.42252009
137.248540965,35.459,62.649,4991.63131361,1.4503006,14.54,-6258.68054041
141.397096785,24.782,72.519,4810.73712908,1.5434398,14.54,-5880.1218393
145.545652605,13.419,81.59,209.80941588,26.59607,14.54,-327.542689344
hth,
Hugh Adamson