Tested with 6 new Posts (UNA Posts app).

I removed all special characters : , - from each Title before submitting post.

SEO URLs work as they should when there are NO special characters in the title.

Characters in the Title breaks the SEO URLs function.

I submitted each post, then Edited the Title afterwards.

WITH characters in the Title:

https://mysite.com/view-post/l2afyb

WITHOUT characters in the Title:

https://mysite.com/view-discussion/the-financial-advantages-of-utilizing-an

PS: SIMON...I'm on a great VPS cloud hosting plan. Audit always shows the same things for years (apache, rewrite mod undefined...). Never had any problems.

I think you're right, re: do not use special characters in the title of Discussions, etc. Quite a number of my test Discussions titles did have special characters, e.g. testing no. 1 Discussions General

I'll continue to test, but this time around, not include special characters. If I continue to have issues with the URLs not displaying properly, I'll come back here to note it.