Number of simulations available for meta-analysis:
Sims 
2172 

Female mean provided by rma before adjustment:
SexFemale        lb        ub      CLpm  TrueMean  Coverage 
     3.38      2.54      4.21      0.84      3.00     82.55 
Male mean provided by rma before adjustment:
 SexMale       lb       ub     CLpm TrueMean Coverage 
    1.85     1.21     2.49     0.64     1.00    27.85 
Non-missing values for the above:
 SexMale       lb       ub     CLpm TrueMean Coverage 
    2172     2172     2172     2172     2172     2172 
Tau^2 and Tau provided by rma before adjustment (no CLs):
   Tau2 TrueSD2     Tau  TrueSD 
   0.49    0.25    0.53    0.50 

Female mean provided by selmodel:
SexFemale        lb        ub      CLpm  TrueMean  Coverage 
     3.13      2.17      4.09      0.96      3.00     86.08 
Male mean provided by selmodel:
 SexMale       lb       ub     CLpm TrueMean Coverage 
    1.28     0.26     2.26     1.00     1.00    74.08 
Non-missing values for the above:
 SexMale       lb       ub     CLpm TrueMean Coverage 
    2169     2018     2018     2018     2169     2018 

Tau^2 with CLs provided by confint applied to selmodel-adjusted estimates:
estimate    ci.lb    ci.ub  TrueSD2 Coverage 
    0.37     0.05     2.26     0.25    91.56 
Tau with CLs provided by confint applied to selmodel-adjusted estimates:
estimate    ci.lb    ci.ub   TrueSD Coverage 
    0.42     0.09     1.31     0.50    92.72 
Number of simulations with non-missing values for the above:
estimate    ci.lb    ci.ub   TrueSD Coverage 
    2169     2169     2169     2169     2169 

Tau^2 and Tau with CLs via Tau2 and its SE provided by selmodel:
    Tau2   Tau2SE  Tau2LCL  Tau2UCL  TrueSD2 Coverage      Tau   TauLCL   TauUCL   TrueSD 
    0.37     0.66    -0.53     1.64     0.25    99.31     0.42    -0.67     1.19     0.50 
Non-missing values for the above:
    Tau2   Tau2SE  Tau2LCL  Tau2UCL  TrueSD2 Coverage      Tau   TauLCL   TauUCL   TrueSD 
    2169     1458     1458     1458     2169     1458     2169     1458     1458     2169 

Here's the error messages and warnings:
selmodel failed with this:
 Optimizer (optim) did not achieve convergence (convergence = 1). 
selmodel failed with this:
 Optimizer (optim) did not achieve convergence (convergence = 1). 
selmodel failed with this:
 Could not refit input model using method='ML'. 
There were 50 or more warnings (use warnings() to see the first 50)

Warning messages:
1: Error when trying to invert Hessian.
2: Error when trying to invert Hessian.
3: One or more intervals do not contain any observed p-values.
4: One or more 'delta' estimates are (almost) equal to their lower or upper bound.
Treat results with caution (or consider adjusting 'delta.min' and/or 'delta.max').
5: Error when trying to invert Hessian.
6: One or more intervals do not contain any observed p-values.
7: One or more 'delta' estimates are (almost) equal to their lower or upper bound.
Treat results with caution (or consider adjusting 'delta.min' and/or 'delta.max').
8: Error when trying to invert Hessian.
9: One or more intervals do not contain any observed p-values.
10: One or more 'delta' estimates are (almost) equal to their lower or upper bound.
Treat results with caution (or consider adjusting 'delta.min' and/or 'delta.max').
11: Error when trying to invert Hessian.
12: Error when trying to invert Hessian.
13: Error when trying to invert Hessian.
14: Error when trying to invert Hessian.
15: Error when trying to invert Hessian.
16: Error when trying to invert Hessian.
17: Error when trying to invert Hessian.
18: Error when trying to invert Hessian.
19: Error when trying to invert Hessian.
20: One or more intervals do not contain any observed p-values.
21: Error when trying to invert Hessian.
22: Error when trying to invert Hessian.
23: Error when trying to invert Hessian.
24: Error when trying to invert Hessian.
25: Error when trying to invert Hessian.
26: Error when trying to invert Hessian.
27: Error when trying to invert Hessian.
28: Error when trying to invert Hessian.
29: Error when trying to invert Hessian.
30: Error when trying to invert Hessian.
31: One or more intervals do not contain any observed p-values.
32: One or more 'delta' estimates are (almost) equal to their lower or upper bound.
Treat results with caution (or consider adjusting 'delta.min' and/or 'delta.max').
33: Error when trying to invert Hessian.
34: Error when trying to invert Hessian.
35: Error when trying to invert Hessian.
36: Error when trying to invert Hessian.
37: Error when trying to invert Hessian.
38: Error when trying to invert Hessian.
39: Error when trying to invert Hessian.
40: Error when trying to invert Hessian.
41: Error when trying to invert Hessian.
42: Error when trying to invert Hessian.
43: Error when trying to invert Hessian.
44: Error when trying to invert Hessian.
45: One or more intervals do not contain any observed p-values.
46: One or more 'delta' estimates are (almost) equal to their lower or upper bound.
Treat results with caution (or consider adjusting 'delta.min' and/or 'delta.max').
47: Error when trying to invert Hessian.
48: Error when trying to invert Hessian.
49: One or more intervals do not contain any observed p-values.
50: One or more 'delta' estimates are (almost) equal to their lower or upper bound.
Treat results with caution (or consider adjusting 'delta.min' and/or 'delta.max').