I just solved this kind of problem today,
Please try this link,
https://docs.unrealengine.com/5.0/en-US/using-google-play-asset-delivery-in-unreal-engine/
This error is probably due to the fact that the OBB is not included when bundling aab. so we need to set google PAD plugin.
In brief,
in the setting,
-plug in - google PAD/ Enable [Enable plugin] →Reboot UE5
-Enable [Generate Chunks]
-Disable [Package Data inside APK?]
(I recommend that you read the link to set it up correctly.)
Presumably, this work is to package the data that would be output as OBB to be included in aab.
Even if this aab file is over 150MB(my file was 220MB), no problem for uploading on play store in my case.
The size of the pak file in the bundle does not appear to be subject to the 150 MB limit.
I hope it works well for everyone. 