LightWare LW20/C locks up I2C bus

HI all i have an issue LightWare LW20/C on the I2C bus
the I2C bus looks like its freezing leds stops and air speed to

so i did some logic scans x 2

2 MHz, 8 M Samples [8]no-LW20.logicdata
2 MHz, 8 M Samples [9]with-LW20.logicdata

works fine on serial 4 on 3.9.9