When I turn on my notebook, I put the password and it comes in, the startup icons do not appear, it takes a few minutes, it never happened. How can I solve this problem? 100% updated version elementary OS 0.4 Loki (64-bit)
This is a known bug: https://bugs.launchpad.net/elementaryos/+bug/1596377
This is the workaround: Significant lag loading panel and dock after login (Loki)
mv /etc/xdg/autostart/at-spi-dbus-bus.desktop /etc/xdg/autostart/at-spi-dbus-bus.disabled
One of the easy ways to do this is to check that on right clicking the icon a sub menu should appear with the option to run or open the application as administrator. This should take care of those locked folders and files. Currently I am using Elementary OS Loki (64-bit, intel) which is a derivative of Ubuntu 16.04. I hope this should work.
I was facing same problem before, but now it is working.
Have you placed shortcut of other applications in dock? If so, then can you remove one at a time and check if it is working?
Also first try to login with guest account and then go over your account.