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Review the program segment where retrace was initiated and identify which axes are being commanded.

Verify that only linear axes (X, Y, Z) are included in the retrace block and no rotary (A, B, C) or special axes are referenced.

Check parameter 7410 (retrace axis specification) to confirm which axes are enabled for retrace functionality on your machine.

Modifying axis parameters may affect machine operation - document original values before changes.

Edit the program to remove invalid axis specifications from the retrace sequence or disable retrace for those axes.

Check if G68 (coordinate rotation), G51.1 (programmable mirror image), or similar transformations are active that may alter axis behavior.

Review modal G-codes and work coordinate systems (G54-G59) to ensure they match the state when the original block was executed.

Cancel any active transformations by issuing G69 (cancel rotation) or G50.1 (cancel mirror) before attempting retrace operation.

Reset the control or restart the program from the beginning to ensure consistent axis configuration throughout execution.

Machine will lose current position reference - re-home all axes after reset.

Verify that the retrace command is issued within the allowable number of blocks from the target position (check parameter 7411 for retrace block buffer size).

Ensure no M02, M30, or RESET commands were executed between the original movement and the retrace attempt, as these clear the retrace buffer.

Check for program jumps (GOTO, M99) or subprogram calls that may disrupt the sequential retrace path in the buffer.

Restructure the program to eliminate complex branching near retrace operations, or manually program the reverse path instead of using retrace function.