cannot download HTTPS (error code 5)

I am using BitComet (64-bit) 1.52 on Windows 7 (x64) - the following link works in IE11 but not under BitComet:

[https://www.nijioma.blog/wp-content/uploads/2018/08/201808050003270.jpg](https://www.nijioma.blog/wp-content/uploads/2018/08/201808050003270.jpg)

This seems to be limited to HTTPS (TLS?), as BitComet can download via HTTP on the same domain without any issue, i.e. this works:

[http://www.nijioma.blog/wp-content/uploads/2018/08/201808050003270.jpg](https://www.nijioma.blog/wp-content/uploads/2018/08/201808050003270.jpg)