The project has been running all the time. There was a bug in WeChat sharing today, and it suddenly couldn't be shared. The first thing that came to my mind was that the APP_ID was modified (WeChat payment is normal), and then I downloaded the WeChat demo again, and searched through endless parameter configurations. ,...
The reason is that the Bitmap does not specify a size resulting in:
//solution:
Bitmap thumbBmp = Bitmap.createScaledBitmap(shareThumb, 150, 150, false);