It seems to be confirmed that Leica will update the firmware for the Leica TL2 at Friday, 28th of July, 2017, a proficient product which should probably repair also the mistake in connection with the Visoflex seeker.
Leica had warned about few days still before the application of the in-house Visoflex seeker in connection with the TL2. According to a communication on the company website the use of the seeker can lead to a failure of the camera, so that in the worst case the camera cannot be used any more.