Every day, I have to check and see if my previous day's saves are still there.
Unacceptable!
If you can't get your act together, UBISOFT, at least give us the ability to save reliably to our local drive.

@speedingpullet I'm in the exact same situation.
Lost quiver capacity. (Tried the "Vinland" fix" that is suggested. Did not work for me). It does hamper the game.
I did the Yule. Now, I'm drunk on game load as well. In Yule, completed the brawl. But, I did not "win" the drink or twirl contests. Eventually (If it is accurate) the quests will expire.

After the 1.1 patch, my fully upgraded quiver (all bow types), has seen the same reduction in arrows. Severely impacting the ability to face Zealots and Boss's.
Fighting the Bear (of the woods), I could not - no matter what I do - reduce the health enough to vanquish this legendary beast.
As the fight progresses, and I quickly go through my depleted quiver, the beast regenerates health.
This may be how it works, but to take away my ability to have some level of fairness in a fight, is unacceptable.
In addition, all the progress made in the day - about the time the patch rolled out - eliminated several hours of game progress and a dozen saved games.
This is the 3rd time I've had to redo several hours of play. These, of course, include several boss fights.
I had finished the Stone story line.
Can you please stop messing things up?
Ubisoft has really screwed the pooch on this one. I've played them all. There have been some bugs. Some head-scratchers. But, never on this scale.
There is a suggestion that we return to Vinland, deplete all arrows. Return to Raventhorpe and buy arrows. I will give this a try. But, what a monumental clusterf**k this is!

Every day, I have to check and see if my previous day's saves are still there.
Unacceptable!
If you can't get your act together, UBISOFT, at least give us the ability to save reliably to our local drive.

@speedingpullet I'm in the exact same situation.
Lost quiver capacity. (Tried the "Vinland" fix" that is suggested. Did not work for me). It does hamper the game.
I did the Yule. Now, I'm drunk on game load as well. In Yule, completed the brawl. But, I did not "win" the drink or twirl contests. Eventually (If it is accurate) the quests will expire.

Vinland solution did not work for myself (XBOX ONE X, AC Patch 1.1.0) or others.

Unfortunately, I experienced the same thing.
It does NOT fix the issue, for me as well.
Very frustrating to be at such a disadvantage when encountering high-level targets.
And, the UBISOFT SUPPORT page does not actually allow you to submit cases. (Calling it a BETA site, does not excuse the behaviour.)
Is Ubisoft showing cracks in the wall?

After the 1.1 patch, my fully upgraded quiver (all bow types), has seen the same reduction in arrows. Severely impacting the ability to face Zealots and Boss's.
Fighting the Bear (of the woods), I could not - no matter what I do - reduce the health enough to vanquish this legendary beast.
As the fight progresses, and I quickly go through my depleted quiver, the beast regenerates health.
This may be how it works, but to take away my ability to have some level of fairness in a fight, is unacceptable.
In addition, all the progress made in the day - about the time the patch rolled out - eliminated several hours of game progress and a dozen saved games.
This is the 3rd time I've had to redo several hours of play. These, of course, include several boss fights.
I had finished the Stone story line.
Can you please stop messing things up?
Ubisoft has really screwed the pooch on this one. I've played them all. There have been some bugs. Some head-scratchers. But, never on this scale.
There is a suggestion that we return to Vinland, deplete all arrows. Return to Raventhorpe and buy arrows. I will give this a try. But, what a monumental clusterf**k this is!

I had the same problem.
I returned to Raventhorpe and did the seer thing as well.
However, what seems to have fixed it, was that I ran into Wallace's sister and helped her find him.
I have been able to save games and Fast Travel ever since.
I was afraid that I would lose hours or play.
Phew! I lost a lot of time already, last week, due to saved game corruption.
Can't say it is related to pre/post 1.0.4 patch. But, it seems to be more than coincidental that these issues occur in the "update period"
I have played almost every version of AC. It is, by far, my favourite game. But, this level of fail is the worst I have seen or experienced, in the whole series.

@mikey_bike
I ended up returning to the longhouse, in Rahenthorpe. (Rode a horse from East Anglia (over 3Kms), because Fast Travel or saves would not work)
Attempted meditation and sleep. That did not work.
Went to seer's house. Drank Elixir. Returned to Asgard. - I was able to Fast Travel and save.
Returned to Raventhorpe. Save was still not working.
Ran into Wallace's sister. Helped her find Wallace.
Saves and Fast Travel have worked since.
Bugs! I did not have any active quests.
Note: Last week, I experienced the dreaded saved game corruption and lost several hours of play.
I hope that helps.

@saddlersm
Hi,
I'd like to add to this thread.
Last week, like many, I lost several hours of game play, due to save game corruption. After restarting my XBOX One X, it seemed to now be saving once more.

Today, I was about 3Kms away (after Grendel) and hitting as many Sync points as possible. After several hours of attempting to save and - I just wanted to grind away at the quests.
I noticed I could not even Fast Travel. I had no live sequence or quest ongoing.
I read these threads and figured I'd head back to Raventhorpe, to have Eivor rest in her own bed (as some have mentioned meditation or sleep helped). Rode the Mount, at full throttle and evaded a few enemies along the way...
It did not fix my issues.
So, I went back to the Seer. Drank the elixir to return to Asgard. - I was able to perform saves.
Went back to England.
Bumped into Wallace's Sister. This led us to complete this quest.
At the end of it, I was able to save my game. (will it be corrupted? I certainly hope not).
I was very concerned that I had lost another several hours (about 5 hours since my last save)

But, phew....
I was finally able to save my game.

I hope neither of these issues return. But, I hope this helps someone else, before reloading an older save...