I have a Huawei P20 Pro, my android system is up to date, and Deezer is up to date.
I've consisitently had issues, like many others, with downloading music in Deezer. I have a separate playlist for undownloaded songs that I try to refresh and kickstart a download but it never works (pulling down to update, switching on/off the download tab etc). It's odd because some of the new liked songs added after these ones will be downloaded just fine, but for some reason there's a random selection of specific songs that refuse to download.
On the other hand, I've had trouble deleting downloads from my podcasts! I have over 20 episodes that I have to delete now, but however which way I try to delete the download, it won't actually work. Its been like this for a over a week.
I got Deezer to get away from Spotify, and there's lots I prefer about Deezer. However the bugginess, crashing, and the persistent issues with downloads make it really frustrating and hard to reccomend to people. I work 9+ hour days with little service and no internet, so I need a reliable internet/data-free music/podcast option.