I have found these errors in the log, they don't appear when I copy or paste so they may be unrelated:
CopyQ ERROR [2021-07-20 09:51:42.718] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemencrypted.dll: Unknown error 0x000000c1.
CopyQ ERROR [2021-07-20 09:51:42.722] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemfakevim.dll: Unknown error 0x000000c1.
CopyQ ERROR [2021-07-20 09:51:42.725] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemimage.dll: Unknown error 0x000000c1.
CopyQ ERROR [2021-07-20 09:51:42.728] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemnotes.dll: Unknown error 0x000000c1.
CopyQ ERROR [2021-07-20 09:51:42.731] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitempinned.dll: Unknown error 0x000000c1.
CopyQ ERROR [2021-07-20 09:51:42.735] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemsync.dll: Unknown error 0x000000c1.
CopyQ ERROR [2021-07-20 09:51:42.738] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemtags.dll: Unknown error 0x000000c1.
CopyQ ERROR [2021-07-20 09:51:42.741] <monitorClipboard-23076>: Cannot load library D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemtext.dll: Unknown error 0x000000c1.
> dir "D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins\libitemencrypted.dll"
Directory of D:\DBAREIS\Tools\[Portable]\$Clipboard Managers\CopyQ\plugins
16/10/2020 11:58 PM 373,667 libitemencrypted.dll
1 File(s) 373,667 bytes
0 Dir(s) 712,506,138,624 bytes free