Hi everyone,
Thank you for reporting this issue. Following a recent review, we reopened this bug report, and we apologize that it was closed solely because of the time that had passed.
We reproduced the issue and have implemented a fix. With MarkFirstMatch enabled and Filter set to StartsWith, the ComboBox now completes the input to the first matching item and selects the inserted text while keeping the suggestions open. The fix will appear in 2026 Q3 SP1.
Regards,
Rumen
Progress Telerik
After update Edge to 25.10586 versión, when press second character,in, radcombobox wiith filtering page reload,
The Filter breaks also AllowCustomText at true...