Android sudden MASSIVE file size on install

Before I begin I’m gonna say that yes I understand everything about unreal engine not having ideal package sizes for mobile and all of that, all textures and plugins have already been optimized. We have already released a game that comes to about 250mb on device after downloading. That was the case for this game for a while until yesterday, we have no idea what has changed but the game is now suddenly coming to a massive 2 and a half gigabytes on device. We have not toggled any settings, or added any additional assets, but something has caused the file size to balloon 10x. What we have found to most likely be the culprit is a 2gb .so file that seems to get generated when packaging, but I have no idea what this is or how to get rid of it. Any help or potential suggestions would be nice, thank you.

Edit: The issue was caused by an update to a plugin we are using for firebase integration, downgrading the plugin has solved the issue.

The issue was caused by an update to a plugin we are using for firebase integration, downgrading the plugin has solved the issue.