I'm in a 7 year career with Virgin and at some race weekends the engineer tells me there is some R&D to be done. So I select the option and beat the time objective and come back to the pits. There appears to be no confirmation that it has actually happened. Furthermore in P2 and P3 the engineer again tells me there is R&D and when I look it is exactly the same development with exactly the same target time. Up to now I have been going out and repeating the same R&D 3 times, one in each session. Is repeatedly offering the same R&D another bug so I'm just wasting my time completing it several times or is it supposed to work like this with a cumulative effect? Does anyone know/have the same experience?