Getting strange chars in Serial output from time to time

[Whandall]

@skippy76

            char strkal[10] = "";
            sprintf(strkal, "0x%02X%02X%02X", notifydata[4], notifydata[5], notifydata[6]);
            unsigned long statkal = strtol(strkal, NULL, 0);

Why do you go through ASCII conversion and reconversion instead of just taking the values?

uint32_t statkal = (((((uint32_t)notifydata[4]) << 8) + notifydata[5]) << 8) + notifydata[6];