I have seen numerous previous posts about buffer overflows when running Uno / Nano with ESP and suspect it also occurs with the LCD widget. I wouldn’t have thought there was that much data being processed with the LCD widget.
After extensive testing I have found that many simple requests to write to the LCD cause the ESP to disconnect and reconnect over and over again from the Blynk servers. I wrote about the problem in detail at Blynk Libraries
The exact same code without the ESP (USB serial) seems to work fine and for now I have reverted back to USB as the ESP became unusable. Strange thing is I can flood the LCD with write’s on 500 millisecond timer and it runs ok then a simple one off write to the LCD will crash the system.
Anyone noticed the same problem and specifically have a fix for it?