On resuming a saved activity, particularly for saves while train is crawling up hill and locomotives are at maximum throttle, often get warning for wheelslip and locomotive power being reduced! The train usually stalls at that point despite deploying sand to aid traction.

Now, prior to the saved activities, the train was managing to move along (often without sand being deployed) with no issues.

It appears that the slight delay on resuming the activity from a save causes Open Rails to decide that wheelslip must now occur and power must be reduced!?

So, not sure if this a "bug", or what? But it is annoying to have this wheelslip/power reduction/train stall occur on many occasions after resuming an otherwise perfecting running activity!?