12 issues missing with this cover date from IDW Publishing
January · 1
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Sonic the Hedgehog V1 (2018) #25 A Sudden ShiftJan 2020Missing
February · 1
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Sonic the Hedgehog V1 (2018) #26 All or Nothing, Part OneFeb 2020Missing
March · 1
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Sonic the Hedgehog V1 (2018) #27 All or Nothing, Part TwoMar 2020Missing
July · 2
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Jul 2020Missing Mylar wants it
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Sonic the Hedgehog V1 (2018) #29 All or Nothing, Part FourJul 2020Missing
August · 1
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Sonic the Hedgehog V1 (2018) #30 CuredAug 2020Missing
September · 3
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Sonic the Hedgehog V1 (2018) #31 Recovery, Part 1Sep 2020Missing
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Sonic the Hedgehog V1 (2018) #32 Recovery, Part 2Sep 2020Missing
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Sonic the Hedgehog V1 (2018) #33 Chao Races and Badnik Bases, Part 1Sep 2020Missing
October · 1
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Sonic the Hedgehog V1 (2018) #34 Chao Races and Badnik Bases, Part 2Oct 2020Missing
November · 1
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Sonic the Hedgehog V1 (2018) #35 Chao Races and Badnik Bases, Part 3Nov 2020Missing
December · 1
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Sonic the Hedgehog V1 (2018) #36 Chao Races and Badnik Bases, Part 4Dec 2020Missing