Multi tool use

Error when trying to fit a STERGM model in statnet R

I'm trying to analyze my data using STERGM (part of package statnet) but I'm experiencing some errors I can't figure out whenever I add node covariate terms to the formula's parameters.
This is the error I get immediately after running the code:

STERGM

*Error in ergm.getglobalstats(nw, m, response = response) :
NA/NaN/Inf in foreign function call (arg 13)*


My networkDynamic object consists of 5 networks, with changing active vertices.
Googling around (and some basic intuition) tells me I have some missing (NA/NaN) vertex attributes, but after double and triple checking this isn't the case. I tried different quantitative attributes (one with permanent values over all networks, another with varying values in each network) but all produce the same error.
When fitting each of the 5 networks separately using a "simple" ERGM with the same node covariate terms, everything works fine.

networkDynamic

NA/NaN

To create a reproducible example from code is a pain in the neck, so my data can be downloaded here: https://ufile.io/3osj9
And this is the code I'm trying to run:

#Load the downloaded hoi.Rdata file
library(statnet)
stergm.fit <- stergm (hoidyndel, formation = ~ edges + gwidegree(2, fixed=T)
+ nodecov("authorship"),
dissolution = ~ edges
+ nodecov ("authorship"),
estimate = "CMLE",
times = 0:4)


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