I am currently trying to model and simulate a system of delay differential equations(DDEs) in Pumas. While I can currently simulate, when I try to do parameter estimation I get the error

“Incompatible problem+solver pairing”, which I presume means that Pumas does not currently support non-ode parameter estimation.

The closest advice I’ve seen for non-ode parameter estimation portion came from @ChrisRackauckas in a Pumas discussion thread from July 2020 found here. Are there any updates on if/when Pumas will support non-ode parameter estimation? Also, the aforementioned thread said there is a workaround for parameter estimation of SDE problems using another Julia Library. Does such a workaround exist for the parameter estimation of a system of DDEs? Thank you in advance.