S9 has combined all of my contact names.

[Trie]

 It seems the latest update did something that has combined each of my contacts first and last name on the first name line in the format last/first: SmithJohn no spaces. I have 500+ contacts, how do I undo this!? 

[ChrisM]

Hi @Trie.

Did you manage to find a fix for this issue with your contacts?

[Trie]

I didn't . Although it does appear that some of my contacts have randomly changed themselves back ,but others remain mixed up.