I confirm it.
Newest build for Windows from github.
Code:
Error info: Critical: OleSetClipboard: Failed to set mime data (text/plain) on clipboard: COM error 0xffffffff800401d0 (Unknown error 0x0800401d0) (Parametr jest niepoprawny.)
Sigil version: 0.9.10
Runtime Qt: 5.11.2
Compiled Qt: 5.11.2
Platform: Windows SysInfo ID 192
Easier to call an error:
1. Enable visible "Clip Bar" toolbar
2. Put cursor in field "Find:"
3. Select any Clip from Clib Bar