It may be possible a virus is on your comp (since those can affect system operation) or some sort of processing error occurred due to a temporary power failure. May be a corruption in the transmission of data?

Of course the error may be on WCG end. As long as the vast majority of the work is valid then you should be happy. If you get more invalid or work that says errors then it may be time to do some problem hunting on your end.

Some work tasks seem more prone to error. Human Proteome Folding - Phase 2 on my end had one error but out of the 19 required for replication sent out five other people getting them had an error on the task. Other people were ruled valid.

Still got some work credit for the computation done.

I was just listing the possibilities that can cause the number crunching to not be accurate.

It's always a good idea to keep an anti-virus up to date. Lots of nasty ones these days that hijack websites and the comp that goes to visit said website.

As a mod stated it appeared the project has issues with certain AMD processors and was wanting to know if you had one with the model. Seems they are working on resolving it.

I have had an error in a module due to a bluescreen. The Bluescreen was caused by some program that windows defender upon scanning recommend be removed. Bluescreens disappeared after that.

Real annoying since it made me lose a lot of work for ibercivis (it caused bionic to detach from the program) and milkyway at home caused it to render a lot of runs invalid.

Right now my computer is crunching and rendering the majority of the new tasks with valid results.

Real irritating when 9 hours of run time on a task is made invalid due to a bluescreen caused by some third party software you didn't know was in your comp.

Strange I never get an invalid after suspending then resuming a task. Did you turn on the option to keep the suspended tasks in memory?