A book that opens in all my other epub readers is rejected by sigil with:
Sigil has encountered a problem.
Sigil may need to close.
Details:
Error info: Cannot load file L:\r.epub: C:/Users/jim/AppData/Local/Temp/Sigil-atrcMs/OEBPS/Fonts/font00229.otf:
http://ns.adobe.com/pdf/enc#RC:
Sigil version: 0.9.18
Runtime Qt: 5.12.3
Compiled Qt: 5.12.3
System: Windows 7 SP 1 (6.1)
Architecture: x86_64