When Control + G is pressed in the Code Editor, an error is first raised before displaying the dialog:
TOAD for Oracle version 17 Patch 1 (17 had the same behavior, 16.x was fine)
For the full error log please contact me, there's too much sensitive information in there to post publicly.
I've sent the full error log to your email. Yes, the error is reproducible every time by just pressing Control + G. After pressing OK on the error pop-up, the expected dialog for the GoTo Line is displayed. Thanks a lot for your quick help!
Thanks. I cannot reproduce it, but I see the issue based on the call stack and our commit history. The fix will be in next Monday's beta if you can give it a test. Toad for Oracle 17.1 Beta - #36 by JohnDorlon