Sorry, I thought I clicked on a button earlier to say that this is happening on Samsung Galaxy S9 phone. Signal works GREAT! I love it so much more. Handles images and videos in text like a charm. The only problem with Signal is that everyone has to be on it. So when I encounter people who aren't on Signal, then I can't use it to text them. I was talking about the default texting app called Messages. It absolutely sucks after an OS update. Messages is what corrupted my SD card. And it was SD card vs internal storage that I was trying to pull in images from. The SD card is my primary storage. We were able to take the SD card out of the phone, read it on a computer, put back into the phone and then the Gallery could at least find the images again. So, thankfully the SD card isn't actually corrupt. The Messages app just sucks at being able to do anything with images in my lifetime. I mean I click to add an image and it literally takes 3 minutes to pull up my gallery with a bunch of black thumbnails. Then eventually it shows an image (sometimes) and then I select it only to have it spin for 3-5 more minutes actually adding it into the text so I can get the send button to show up. Press send to send the text...wait same amount of time for it to actually send it. That is all if it doesn't crash itself along the way and automatically close the app.
I'll try to clear the partition cache to see if that helps. I can also try clearing data and cache for Messages. Will that erase my entire text history? That would not be ideal. I occasionally refer back to past texts for info.