Matrix ToF SEN0628 stopped working

I have two SEN0628 and I am using them with an Atom5Lite (ESP32-compatible) board. I got both sensors working and return an 8x8 distance grid successfully. Then I mounted them to my project using screws, and now both only return seemingly random numbers, but always the same until I reset them.

So, for example, the sensor always returns

Y0: 758,3292,33972,30026,23016,33606,30096,958,

as the first line, however often I query the sensor. When reset, the sensor might return for example

Y0: 2814,3292,33980,30026,23016,33606,26000,958,

But always the same.

I'm using the example program from 

https://github.com/DFRobot/DFRobot_MatrixLidar/tree/master/examples/I2C/get8_8Data

And the “begin success” and “init success” both appear!

I also updated the firmware version to 1.3, and I think I have the new version of the sensor. As both sensors worked yesterday, and stopped working today, and the only thing I changed is mounting them to my project, I wonder if there is a known problem of the sensors failing when using the screw-holes? I removed them from the project and still have the same failure.

Any help is appreciated!