When surface snapping is turned on, and I click on the tab, then right click and start searching, the text in the surface snapping dissapears and is replaced by whatever I searched, and I have to re-start the editor to be able to turn surface snapping on and off again.

Hey mcgillchris-
Thank you for submitting a bug report. I have reproduced this issue and logged a report for it here Unreal Engine Issues and Bug Tracker (UE-46302) . You can track the report’s status as the issue is reviewed by our development staff. Please be aware that this issue may not be prioritized or fixed soon.
Cheers