Truncated Downloads

[Kevin628]

Recently some downloads to my Sky Q box have appeared to succeed, but have not fully downloaded. If I delete and retry the download, I get the same result.

For example, a programme showing as 59 minutes long before download only shows as 26 minutes long when downloaded and, when viewed, is 26 minutes long and is not a complete item.

I've only noticed this on some Eurosport downloads in the last month or so.

Any ideas?