Couldn't load bitmap error AND poor sound quality

[ankit93868]

Please tell us some basic information before asking for help:
Model Name:Zenfone Max Pro M1
Firmware Version: latest stable pie
Rooted or not:not
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
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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After downgrading from beta3 to stable pie
1. Sound quality become worst
2. During cleaning Boot chache. It shows couldn't load Bitmap

[AsusYouzr]

Sound is good on stable pie compared to A10 beta..
Latest Android 10 is beta 5 , version 438..
Why you were on beta 3 ?
A10 beta 5 has bad sound output, like too much treble and crackling ..
Latest A9 pie version is 087..which has good sound output quality.

[ankit93868]

AsusYouzr

Sound is good on stable pie compared to A10 beta..

Latest Android 10 is beta 5 , version 438..

Why you were on beta 3 ?

A10 beta 5 has bad sound output, like too much treble and crackling ..

Latest A9 pie version is 087..which has good sound output quality.

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Ok,
Sound quality is good but what about couldn't load bitmap

[AsusYouzr]

ankit93868

https://zentalk.asus.com/en/discussion/comment/149245#Comment_149245

Ok,

Sound quality is good but what about couldn't load bitmap

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I didn't boot to recovery once since i bought this phone, because i don't need to.
mod or any advance user can answer that bitmap error.

[Yachendra]

ankit93868

https://zentalk.asus.com/en/discussion/comment/149245#Comment_149245

Ok,

Sound quality is good but what about couldn't load bitmap

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Asus people also don't know why that error occured. It's came with one of the Pie firmware update. Since then it's there.
When I updated to Android 10 latest beta, it's disappeared. But again it came back with downgrade. It's there with ROM.