Fix Test Failures

[avik-pal]

No description provided.

[avik-pal]

@frankschae for the diffeq test failure it seems like the reverselosscallback time is going down to 0 which is causing the indexing error.

_t = Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0]
(cur_time, t) = (Base.RefValue{Int64}(6), Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0])
(cur_time, t) = (Base.RefValue{Int64}(5), Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0])
(cur_time, t) = (Base.RefValue{Int64}(4), Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0])
(cur_time, t) = (Base.RefValue{Int64}(3), Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0])
(cur_time, t) = (Base.RefValue{Int64}(2), Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0])
(cur_time, t) = (Base.RefValue{Int64}(1), Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0])
(cur_time, t) = (Base.RefValue{Int64}(0), Float32[0.0, 0.062241733, 0.19261953, 0.44402307, 0.7661728, 1.0])

[avik-pal]

@ChrisRackauckas this handles the main failures we were seeing. The remaining in Core3 are from DAEs but all of the adjoint methods seem to fail there, not sure what caused that.

[frankschae]

Do we know what change caused that? I think the last time that we got such an indexing error, it was save_positions not handled correctly.

[avik-pal]

Not sure, the tests were not running for sometime it seems, it was activating an incorrect env