A number of confused users buzzed on Reddit when they began to see strange behavior with the Twitter app on Huawei smartphones. The app was seemingly deleting photos immediately after the user saved them to the device using the Twitter app. After saving the image, users could see a message from "Huawei System Services" that said "Twitter has deleted a photo from Gallery". This caused an uproar on the internet that led many to believe that Huawei was intentionally blocking users from saving images from Twitter using some kind of feature baked into the OS. Via Reddit Huawei...
Source: https://www.gsmarena.com/huawei_responds_to_twitter_images_being_deleted-news-35191.php