some cameras shows this behaviour after update. mostly old and or oem ones. have one 1831pir, which only can viewed live after update, no records from sdcard anymore. with old dmss version everything is fine.
easyviewer pro still uses old source of dmss, so you can use this one or downgrade app
dahua dont give a shit about these problems. the guys who make the app are some toddlers playing around, seems that they can do whatever they want. no one cares. lol on playstore the toddlers provide gmail email address for help, but you wont receive any. which company is even using random gmail address for support ??
also dahua uses fake reviews on playstore. every 1 star review is spammed away with tons of 5 star reviews from india. dahua is the worst company if you want app.