Please understand that when they say they're working on it they do mean it. I've worked as a DBA for a company that had it's own internal software and developers for it. They had strick procedures to follow to implement patches and new features. Not following them could well introduce a catastrophic bug (and sadly did happen a few times to my knowledge). That said those procedures don't always catch the smaller bugs because they're freak occurrences or simply something no one realized to test.
This is NOT giants (no idea what there's is) but an example based on the company i was at. Their procedure when i left was, 1-2 weeks in a development environment being tested by the developers and analyst who worked closely with them. The next was a week or two in a QA system that was supposed to be a direct mimic of the production system (keywords supposed to) and tested by those who had to use the production level on a regular basis. Each group had a list a things to test. After that if it passed then it went into prod and hopefully stayed. Since QA was unable to match production perfectly things wouldn't always work so cleanly. Recall a few rushed patches to fix critical bugs because the last update couldn't be reversed without losing another important fix. Those still could take days to rush.
Now i don't pretend to know Giant's system, but i bet it isn't too terribly different. For them though they have iOS and Android, two disparate systems to build for and make operate as identical as possible. But on Android they actually have a huge swath of device specs and installed apps they simply cannot anticipate while iOS is fairly limited but still has variables like installed apps and what iOS device. Neither OS should allow conflict between apps, but every so often weird things can happen.
Sorry for the wall of text, just bugs me to see people rip at developers who are showing progress. Ill get off my soap box now.
That said something is off in general in cloud saves as the Android version on mine has lost access to cloud saves completely and while my game plays fine, I'd really like the peace of mind of backing it up.