Bedrock on switch wont start after 1.2 update

After getiing to white load screen bars start moving then exits saying program closed due to error switch was turned on then  updated  then program started first time.

Tryed

Multi power down restarts between the following

Deleted and re-loaded proram

Checked for corrupt data none but re-downloaded data anyway

 Internet test from switch 38.5 down 8.5 up

System memory 18.5gb free

Sd 19.9gb free

Tom