Package check result: ERROR

Check: CRAN incoming feasibility, Result: Note_to_CRAN_maintainers
  Maintainer: ‘James Hollway <james.hollway@graduateinstitute.ch>’

Check: tests, Result: ERROR
    Running ‘testthat.R’ [11s/6s]
  Running the tests in ‘tests/testthat.R’ failed.
  Complete output:
    > library(testthat)
    > library(manynet)
    Registered S3 method overwritten by 'manynet':
      method          from     
      print.tbl_graph tidygraph
    > 
    > test_check("manynet")
    Starting 2 test processes
    [ FAIL 1 | WARN 4 | SKIP 18 | PASS 339 ]
    
    ══ Skipped tests (18) ══════════════════════════════════════════════════════════
    • On CRAN (18): 'test-manip_as.R:86:3', 'test-manip_split.R:50:3',
      'test-map_autographr.R:2:3', 'test-map_autographr.R:17:3',
      'test-map_autographr.R:31:3', 'test-map_autographr.R:49:3',
      'test-map_autographr.R:68:3', 'test-map_autographr.R:96:3',
      'test-map_autographr.R:108:3', 'test-map_autographr.R:117:3',
      'test-map_autographr.R:123:3', 'test-map_autographr.R:130:3',
      'test-map_autographr.R:143:3', 'test-map_autographr.R:160:3',
      'test-mark_nodes.R:13:3', 'test-mark_nodes.R:22:3', 'test-mark_ties.R:24:3',
      'test-mark_ties.R:33:3'
    
    ══ Failed tests ════════════════════════════════════════════════════════════════
    ── Failure ('test-manip_split.R:20:3'): to_ and from_ subgraphs works ──────────
    to_subgraphs(unicorn, "unicorn") has length 1, not length 2.
    
    [ FAIL 1 | WARN 4 | SKIP 18 | PASS 339 ]
    Error: Test failures
    Execution halted

No changes to worse in reverse depends.