Using the TinyScreen along with the Wireling shield, the thermal camera (in port 0), and the microSD shield. All I see is this grey square (even when testing with aa lighter as a heat source) and saving photos yields only values of 0.25. I did modify line 15 of Adafruit_AMG88xx.h to

#define AMG88xx_ADDRESS                (0x68)

but also tried with the original value of 0x69 and get the same result in both cases.

What should I try next?