Maybe you have a corrupted file. I would delete it and download the Tap-in software again from the Tamron site. I just checked it again, and it works fine.
JerryLS wrote:
I am glad you have no problems with the Tap-in.I went to the Tamron Tap-in page and it shows it is compatible with Mac OS 10.10-10,11. I also have io.13.6 update.Thank you for your response.