Apparent error using binomial_2par likelihood model and loo with moment matching

[MilaniC]

The following error arises when invoking:

loo::loo(albie_fit_RE2, moment_match = TRUE)

to address some high Pareto k diagnostic values where albie_fit_RE2 is otherwise a success nma fit object.

Error: Exception: variable does not exist; processing stage=parameter initialization; variable name=beta_tilde; base type=double (in 'binomial_2par', line 202, column 0 to column 22)

[UPDATE: This error occurs irrespective of likelihood chosen]

This works:

loo::loo(albie_fit_RE2, moment_match = FALSE)

All current versions:

multinma dev ver 0.5.1.9007
loo ver 2.6.0
rstan ver 2.32.5
R version 4.3.2 (2023-10-31)
macOS Sonoma 14.2.1