We've run into an odd issue with a site where certain custom fields are getting completely overwritten with the same value pulled from one of the fields, and unrelated to the search and replace text. The issue is reproducible on the live, and dev copy of the website where we're seeing this issue, and on the dev copy we've recreated the issue with just the Better Search Replace plugin active and using a freshly installed copy of the 2025 theme.

Here is a video of the issue happening on the dev site that initially made after determining that the Better Search Replace plugin was the cause:

Here is a video I made today after restoring the site and disabling all of the plugins except for Better Search Replace, and running the 2025 theme:

I can provide access to the dev install for troubleshooting and to run the search and replace to see the issue happening and such.