Yeah, but that's a different issue, and will be resolved shortly. It shouldn't stop anyone from crunching, as the credits will be awarded eventually. No crunching time or credits lost.
About the app_info: It used to be that the app under-utalized the GPU. By using the app_info to run 2 tasks per GPU, you got almost 100% utilization, and better over all credits/day. However, they recently updated the app. Now the tasks run at near 100% GPU load, which is great. No app_info needed any more.