As the title says, there seems to be an issue in the Android app with condition immunities not showing up in monster stat blocks. Opening the same stat block in the D&D Beyond website shows the correct information.

I've attached pictures of the Shield Guardian entry as an example, but a cursory search seems to show this applies to (all?) other monster stat blocks as well.

Hello NorkNork! Thank you for your report. I can confirm that there is a card raised for this bug.

It the same for the mummy on the iPad app. 

Hello! I just wanted to update you both that this issue has now been resolved. Monsters should now properly display their condition immunities. Thanks again for the report!

Can confirm that this works as expected in the Android app now. Thanks for the fix!