Random loss of content during editing

Hi, I have been using Five for my business website for five years - I am currently on  version 7.0. I write an article to my blog page every couple of weeks and they are usually pretty long with a lot of images (I'm a photographer) and occasionally with several affiliate links and embedded ads. I used to post my videos (YouTube links) in these articles but no longer do that. After a hiatus for a few months when all my work was shifted to live-streaming, I returned to my usual workflow, including posting articles. Last week I wrote a very long and detailed article covering 2 hours of livestream content and containing some 50 links - it took me an entire workday to create this content and I was saving the work religiously every five minutes or so (why does this site not have an autosave function?), which is disrupting because it closes the article and I have to open it again to resume work. After more than nine hours, as I was writing the final paragraph, I hit the delete key on my Mac to correct a spelling error (something I had already done 1000 times that day), and the screen flashes white and that was the last I ever saw of the content. I was still on Squarespace, on the blog page, but any evidence that the article had ever existed was gone.  I am a patient person and try to be generous in making allowances, so I let this slide and woke it off to a solar flare or something like that. I spent the next day, my one day off of the week, rewriting the content. And then it happened again today. Another long post, six hours in and all the content gone. I have run out of patience with this. I simply cannot afford the time to write articles twice, and given how much money I give to Squarespace for the sole purpose of keeping my content safe and accessible, I should not have to. I have lost confidence in this organization and will be doing a livestream about this experience sometime soon. But I don't want to throw the baby out with the bathwater so I think it only fair that ask this community if there is some important action I could be taking to prevent this? Or is there something I am doing to cause it? I work on multiple platforms constantly and have never encountered this random loss of content - I am on the same hardwired fiber connection with not a single outage in the last 18 month, and true gig up/down speeds. I work on a pair of Mac Studios with twin M2's, 48 total cores, 384GB memory and 16TB of onboard SSD storage. If anyone has any suggestions for how I can protect my work from arbitrary destruction during long edits, please let me know. I will not write another blog post until I can have some reassurance that my content will not disappear again, or some way to retrieve all the saved work if it does. Short of that I am going to have to find a better solution. Thanks in advance, Allan

I'd be nervous writing extensive content as you describe in a web app of any kind without some kind of backup, outside of the web platform.

Two suggestions.

Use an editor that has auto-save and perhaps a save history, so you can go backwards to get older content. Then at the end, insert the text into the blog post and make final adjustments.

Use a keystroke logger. These are kind of messy to use in my experience but it does have the advantage of providing a backup of everything you type. So if you get really desperate, the log is there to pull content out of.

@DocWalls Did you report this to Support? A few months ago, I had a saved published blog revert to a previous version. I initially chalked it up to a one-off weird event, but then saw this in Reddit:  

@DocWalls This was posted yesterday: 

A very similar thing happened with us (I work for VeroVino that Collaborada kindly linked above).

Have you had any response or help from support in regards to this issue? We are still working with them regarding troubleshooting what could have caused our issue.

Thanks to everyone for responding. The problem is getting worse and today I lost another blog post, even thought the content was created in another app and cut and pasted into blocks on my website, it still took hours to get it organized and add all the code and links. I had saved the content after every paragraph. Then, as I was entering the last couple of items under the SEO tab, the program crashed - and all my work was lost. This is the fourth time in 5 weeks, and it is costing me a huge amount of time. I have absolutely no confidence in this website anymore. But I also have 5 years of accumulated content that I  I am terrified to even open for fear it will be "vanished" like all my recent work. In answer to Jacqueline's question - I have heard not a word from Squarespace. I don't expect to hear from them, to be honest. I gave up on their customer support years ago. I am getting some help from my IT people but at this point I am ready to try something else. I know that writing posts directly into the site was a problem and I take responsibility for the first time or two that this happened. But now they are losing SAVED content, lots of it, and I am a one man show - there isn't anywhere to take up the slack. When they lose my work, they are taking away the precious little time off I get. Enough is enough.