Sorry, can’t help. Just going to repeat some information and suggest some things that are probably off the wall and in no way related…
- Clear history/cache for all time
- Clear DNS (Update broke DNS? - #4 by fanboynz)
- Reset router (already suggested in previous posts)
- Disable all extensions (already suggested in previous posts).
Test Settings:
- Disable/enable autocomplete urls
- DIsable/enable secure DNS and test with custom settings
Other:
- Start tracking websites where have to enter twice and see if pattern emerges
- Open DevTools before entry and keep open to see if an error is generated with first entry
- Using non-standard/gaming/specialty keyboard?
- Anti-virus software? Even though not getting error, try temporarily disabling.