Tested the issue on two Windows 10 x64bit devices and on the second device the issue was reproduced and can confirm it as verified fixed on latest Nightly 82.0a1 (20200903151816) and Beta 81.0b6 (20200903205131).
Bug 1661897 Comment 40 Edit History
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Tested the issue on MacOS 10.14 and on two Windows 10 x64bit devices. The issue was reproduced on MacOS and the second Windows device, so can confirm it as verified fixed on latest Nightly 82.0a1 (20200903151816) and Beta 81.0b6 (20200903205131).