arduino uno and nano not working

please help.why after the update all of my arduinos are not working.just 2 days before its working very good i just update to the newer version and all are not woking.sketch uploading is ok after that my addressable leds dont work anymore.any help would be highly appreciated.than you

after the update

What update?

my addressable leds dont work anymore

Please explain exactly what you mean by that.

thank you for the quick response pert.ive updated to version 1.8.7 IDE.ive figured out already.i downgrade my avr to 1.6.22 and everything work fine always grateful of being a member of this forum becoz there is always a helping hand that always response to help the noobs.thank you so much pert :wink: :wink: :wink: