CRC error with zip files downloaded from web UI

When downloading a folder or multiple files from nextcloud web UI, I have CRC error while unzipping.
Depending on the soft used to unzip, the files are valid or not. (ie. valid with 7zip but not with PowerArchiver, both on W7).
As I can’t chose the unzip program at work, I would appreciate to solve this…

Nextcloud 10.0.1 (stable)
Debian 8
PHP 5.6.24
MySQL 5.5.50

Any help appreciated!

Can you report this to the bugtracker:

It’s done here, thank you for the advice.