Open AI once AGAIN.......

I'm trying to finish up a project that I've been working on since last spring. I started a Google doc with AI content in it and saved it with the intention of going back this past spring. Well, I've gone back to it a couple of times in the meantime, and I'm not sure exactly when they did away with this functionality, but Open AI will no longer allow you to paste anything in that has numbers and letters in one string. They want me to take the time to remove every single string of numbers and letters in the three paragraphs that I've got in the doc. I'm extremely frustrated because this is something that they used to allow, and I'm not sure when they changed this, but it's been a couple of months. I don't remember seeing anything on Chambers or any other place that I get information on ChatGBT. I'm not sure why they've decided to be so picky and not allow us to past text that contains strings of numbers and letters.