Firmware update of scetch 009-esp32-esp8266-processOtaMQTT never ends.

[ChrSchultz]

The scetch compiles well and my device download the OTA_update from thingsboard, but after rebooting the Serial out was.

connecting to AP...
connected 
connected to (demo.thingsboard.io with token ........
Firmware update...

but the loop never started new, if i put in loop() also tb.sendtelemetry(key,value); and I want to begin the loop as usual.