Redbug over rpc IO error

[russelldb]

As reported here http://erlang.org/pipermail/erlang-questions/2018-November/096669.html

Start two nodes

erl -name  -setcookie trc -pa PATH_TO_EPER_BIN
erl -name  -setcookie trc

in the second node () I run the following:

3> net_kernel:hidden_connect('').
 true
 ()4> rpc:call('', redbug, start,
["erlang:term_to_binary", [{arity, true}, {print_file,
"/home/russell/t2btrc"}]]).
 {40,2}
 ()5> rpc:call('', erlang, term_to_binary,
[{my_tuple, is, boss}]).
 <<131,104,3,100,0,8,109,121,95,116,117,112,108,101,100,0,
   2,105,115,100,0,4,98,111,115,115>>
 ()6>
=ERROR REPORT==== 13-Nov-2018::16:48:17 ===
Error in process <0.46.0> on node '' with exit value:
{terminated,[{io,format,[<0.44.0>,"~s~n",["\n16:48:17 <0.52.0>(dead)
{erlang,term_to_binary,1}"]],[]},{redbug,'-mk_outer/1-fun-2-',5,[{file,"src/redbug.erl"},{line,343}]},{redbug,'-wrap_print_fun/1-fun-0-',3,[{file,"src/redbug.erl"},{line...

redbug done, terminated - [{io,format,
                             [<5930.44.0>,"~s~n",
                              ["\n16:48:17 <0.52.0>(dead)
{erlang,term_to_binary,1}"]],
                             []},
                         {redbug,'-mk_outer/1-fun-2-',5,
                                 [{file,"src/redbug.erl"},{line,343}]},
                         {redbug,'-wrap_print_fun/1-fun-0-',3,
                                 [{file,"src/redbug.erl"},{line,329}]},
                         {lists,foldl,3,[{file,"lists.erl"},{line,1248}]},
                         {redbug,print_loop,2,
                                 [{file,"src/redbug.erl"},{line,519}]}]

AND the file "/home/russell/t2btrc" is empty, but created.

However, if I run

         ()1> redbug:start("erlang:term_to_binary", [{arity,
true}, {print_file, "/home/russell/t2btrc"}]).
         {38,2}
         ()2> erlang:term_to_binary({my_tuple, is, boss}).
         <<131,104,3,100,0,8,109,121,95,116,117,112,108,101,100,0,
           2,105,115,100,0,4,98,111,115,115>>
           redbug done, timeout - 1
           ()3>

In the node () the file is created and contains

   16:49:39 <0.39.0>({erlang,apply,2}) {erlang,term_to_binary,1}

I expected running the rpc calls to result in the same outcome as running locally. Is this a bug in my thinking, redbug, or something else?

Both nodes are on the same physical host and have access to the file path.