Please tell us some basic information before asking for help:
Model Name: Zenfone 6
Firmware Version: 17.1810.2009.176
Rooted or not:no
Frequency of Occurrence: first time
APP Name & APP Version (If your issue relates to the app): Camera app, ver 6.4.0.0_200724
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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So, the portrait mode was working fine in my ZF6 a couple of days ago, but today when i switched from the normal camera mode(which was working fine) to the portrait mode, i got an error saying "another app is using camera" but when i switched to another video/photo mode it worked fine. I restarted the phone and cleared storage and cache for the phone app, and when I opened the app again, the Portrait mode was gone. After restarting and clearing cache multiple times, nothing seems to have worked. Anyone else encountered this issue?