Fix validation issues

Correct one blocking issue at a time and validate again after each structural change.

Locate the issue

Open the validation area and read the complete message. Use its action to focus the affected node or graph area when available. Distinguish an error from a warning or plan lock.

Apply the recovery

• For a missing activation, add the correct primary trigger for the strategy mode.
• For a required parameter, select the node and complete the named setting.
• For an incompatible value, inspect both Data Ports and reconnect compatible types.
• For a disconnected control path, connect the relevant outcome to the next node.
• For a cycle, remove the connection that returns to an earlier path.

Do not change unrelated nodes simply to clear the count.

Confirm readiness

Run validation again. Confirm that the original item is gone and that the change did not create another blocking issue. Save the corrected graph before launching a Backtest or leaving the editor.