[Q] SMS messages only seen by stock app topic

Hi,

I am having issues with SMS messages not appearing in third party applications.

I am on
HTC One M8 (UK) Vodafone
Android 5.0.1
Sense 6.0
ROM Stock 4.19.161.2

For only a few contacts, I get SMS messages for them and they only appear in the stock HTC messaging app. I use Google Hangouts normally. I can always see the full conversation in the Stock app but other third party ones don't show the full conversation. I have tried Handcent and Textra as well, all behave like Hangouts and don't see the messages.

I deleted all SMS to clear out what I had, there is also a single SMS from one contact where I cannot open or delete their message but I can see the first few lines or so in the preview window. This leads me to believe the SMS db is corrupt or something. This may be related but the not being able to delete has been something recent and the not getting the 3rd party apps to see certain messages has been happening for a while.

I hope someone can help, really bugging me now.
I am on Stock at present, device is not rooted and I have not altered the bootloader etc.

Thanks
Jason