Windows 10: Task Scheduler "Missed task start rejected"

Question

I have a task in Task Scheduler which runs notepad with the sole purpose of waking the computer at 5am Tues-Sat. Usually it works fine. But every so often (something like once a week) it does nothing. If I look in the Task Scheduler history I get:

Event ID 153

Task Category = "Missed task start rejected"

General = "Task Scheduler did not launch task "\Dr Bobs tasks\Portfolio Update" as it missed its schedule. Consider using the configuration option to start the task when available, if schedule is missed."

Any ideas why it occasionally misses the task? I have tried changing settings such as "If the task fails, restart every minute" to no avail.

Running on a desktop, Windows 10 Home 64bit.

Solution

I have worked this out. If I use my Android phone to put the PC on standby, using an app called PC Remote, then I get this problem. If I put the PC to sleep directly via Windows then there is no problem.