Tentacle Timecode Tool deletes stereo tracks

Hi.  I’m hoping to not have to return 4 new TSEs.

Testing with 2 cameras (XF400 and XC15) both recording to separate Ninja V’s.

The Windows tool appears to affect one audio track so there is no waveform visible in the Davinci Resolve edit page, though audio plays.  The original clip shows normally in the edit page.

When I auto-align clips by timecode, the alignment is not accurate.  This time there is echo so a few frames off.  I cannot tell exactly how much since one waveform is not visualized.

Can this inaccuracy be corrected somehow?  What is the cause?