Strange configurations

I am using this board:
NodeMcu Lua Lolin V3 Wireless WiFi Internet of Things Development Board ESP8266
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I am trying to run the CheckFlashConfig.ino program.

If I configure with a Generic ESP board, I get Wrong Configuration:
Flash real id: 001640E0
Flash real size: 4194304

Flash ide size: 524288
Flash ide speed: 40000000
Flash ide mode: DIO
Flash Chip configuration wrong!

When I change the board to NodeMcu, the CheckFlashConfig.ino program says OK:
Flash real id: 001640E0
Flash real size: 4194304

Flash ide size: 4194304
Flash ide speed: 40000000
Flash ide mode: DIO
Flash Chip configuration ok.

When I run the Relay program from another thread, the program will run on Generic but not on NodeMCU !

Any idea why ?

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