Is the site using the Seo Pro? https://modx.com/extras/package/seopro
If it is can you check that it has been updated to the latest version?
When reporting how many characters are included in the title SEO Pro adds in the number of characters (including white space) that are in the site name.
So for example a page with this title: Lorem Ipsum
On a site called: Ipsum Generator Website
That is set to have this charcter between the page title and the site name: |
Would render as: Ipsum Generator Website | Lorem Ipsum
SEO Pro would display 37/70 about the Title field, when the title is actually 11 characters long.
The number displayed is only a guide, for SEO purposes. It does not affect the number of characters you can store.
I believe the MODX pagetitle field is set to varchar(255), so 255 characters would be your actual limit.
I see from 'pagetitle2.png that the site is using an extra called Articles. https://docs.modx.com/extras/revo/articles
I have not got any experience of using Articles but I have had a quick play with it. It seems that Articles uses the same field for its title that a normal MODX resource would use. However Articles applies the 70 character limit itself, causing the failure to save the resource if 70 characters are exceeded.
I think there are two courses of action available to you.
1. There is a system setting for Articles that allows you to switch on the Long Title field. Although it says this is limited to 70 characters it does not actually apply the limit. You could use the Long Title field in your Articles page template instead of the standard Title field.
2. Take a look at the Articles snippet and see if you can find where it applies the restriction - and hack it to stop it from doing that. I had a quick look and couldn't see anything obvious.