Comment # 1 on bug 1207916 from Alynx Zhou

Thread 6 (Thread 0x7fffee7fc6c0 (LWP 5385) "transmission-gt"):
#0  0x00007ffff6d9180f in EVP_CIPHER_CTX_set_key_length (c=c@entry=0x0,
keylen=20) at crypto/evp/evp_enc.c:994
#1  0x00005555555d1783 in tr_rc4_set_key (handle=0x0, key=0x7fffee7fa0f0
"\225\343\002\071\230/I0\a\375\254D\b\025WAf\256R\355X\257v\030",
key_length=<optimized out>) at ../libtransmission/crypto-utils-openssl.c:213
#2  0x0000555555603901 in initRC4 (crypto=crypto@entry=0x7fffd80ace40,
setme=setme@entry=0x7fffd80ace48, key=<optimized out>) at
../libtransmission/crypto.c:106
--Type <RET> for more, q to quit, c to continue without paging--
#3  0x0000555555603a00 in tr_cryptoEncryptInit (crypto=0x7fffd80ace40) at
../libtransmission/crypto.c:140

I guess the problem is here, is this also happen if you run non-GTK version
(transmission-cli)?