Random ERROR in r-oldrel-windows-ix86+x86_64

[Enchufa2]

Version: 0.1.10 
Check: tests 
Result: ERROR 
     Running 'testthat.R' [15s]
    Running the tests in 'tests/testthat.R' failed.
    Last 13 lines of output:
     Lengths differ: 12 vs 14
     
     
     2. Failure: edges are removed for ignored subtrajectories in Clone (@test-plot-trajectory.R#92) 
     edges_df$to not equal to c(2, 3, 4, 4, 4, 5, 6, 7, 7, 8, 10, 10, 13, 13).
     Lengths differ: 12 vs 14
     
     
     testthat results ================================================================
     OK: 80 SKIPPED: 0 FAILED: 2
     1. Failure: edges are removed for ignored subtrajectories in Clone (@test-plot-trajectory.R#92) 
     2. Failure: edges are removed for ignored subtrajectories in Clone (@test-plot-trajectory.R#92) 
     
     Error: testthat unit tests failed
     Execution halted 
Flavor: r-oldrel-windows-ix86+x86_64