wallet hang after some automatic ticket purchases.

[dnldd]

I have dcrwallet configured to automatically buy tickets in a harness but noticed I could not get past SVH with the wallet running. Noticed it wasn't purchasing tickets as expected and was hanging. Build version for the wallet is dcrwallet version 1.7.0-pre (Go version devel go1.18-8ff254e Thu Dec 9 19:01:08 2021 +0000 darwin/arm64). Here are some logs.

2021-12-15 08:38:21.213 [INF] WLLT: Published ticket purchase ee51d7738d27760a9c9e8eed740f76de4370477b7a82ac8d22c3f13e669b58ee
2021-12-15 08:38:21.302 [INF] WLLT: Returning address (account=0 branch=1 child=77)
2021-12-15 08:38:21.391 [INF] WLLT: Returning address (account=0 branch=1 child=78)
2021-12-15 08:38:21.410 [INF] WLLT: Inserting unconfirmed transaction 1fea70bf3d37d07e53b93f353085f85a29b332021d95c5f40b2a833cc5916954
2021-12-15 08:38:21.412 [INF] TKBY: Purchased ticket 7371c7836dc1e7646f430b9a597598080280d62794c3b275d9a3bee5a2ed832c at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket 8545aaccdff3629cae97a1cc533c689aa102c311dd2b3b26641a7b672133fd5c at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket 267809f75a63114a0394fc46e6421036c7630dec8e22b1e8464943a25d427d8a at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket 4427f41f69785c1438efe7faf58c55379757634efb80887462028b1c43ae9887 at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket ddb2ea854cb7a9a7275207367853471545fe1ab5a0ad31e1ec4318099da22350 at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket 9daaf803767d84e8dedd0cec18f6dbb1f39fa4824902b24f8ece636db64a1c46 at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket 195882005d6f96bc13a64f995745d93447c4626a1dc34c9211db27e0f1d0482c at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket 74b30552ee5eade6e914d1629159e38283d8d86546aedec0c95a5327aed9da72 at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket 022c8c0cba59d7cabe798ed382330b429b431f6615e6c169a2b5cffbb340b162 at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [INF] TKBY: Purchased ticket ee51d7738d27760a9c9e8eed740f76de4370477b7a82ac8d22c3f13e669b58ee at stake difficulty 0.0002 DCR
2021-12-15 08:38:21.428 [DBG] WLLT: Marked address SsbUrpr4ZLEgYqRT559ZSktSk56xRDnamCY used
2021-12-15 08:38:21.428 [DBG] WLLT: Accounting for ticket commitment 1fea70bf3d37d07e53b93f353085f85a29b332021d95c5f40b2a833cc5916954:1 (0.0002298 DCR) from the wallet
2021-12-15 08:38:21.428 [DBG] WLLT: Marked address SscQES1ub4PxzVgXLv7Cq3vQf6P1T9Jp5kT used
2021-12-15 08:38:21.556 [INF] WLLT: Published ticket purchase 1fea70bf3d37d07e53b93f353085f85a29b332021d95c5f40b2a833cc5916954
2021-12-15 08:38:21.572 [INF] WLLT: Split output is 433e937f503f400ef3f14ef0e077c6d4b52d4e9f953314982619bb82e54f3556:5
2021-12-15 08:38:21.678 [INF] WLLT: Returning address (account=0 branch=1 child=79)
2021-12-15 08:38:21.678 [DBG] WLLT: Marking unconfirmed transaction e21b3cdd0bc4628bb5901e5e69b52341c8656c6124d96c3c22bcc1c72127615c mined in block 37
2021-12-15 08:38:21.678 [DBG] WLLT: Marked address SsZJhsdApWJNnr8F92Tz61r5jhQXjARLMZu used
2021-12-15 08:38:21.695 [DBG] WLLT: Marked address SsVRzfcdi1S2YcdgHUcgGCwoF5aQ6NbLZSC used
2021-12-15 08:38:21.695 [DBG] WLLT: Marking unconfirmed transaction 9f50e26f286b8305c46804897ff88aedf54c67a5fe7e12cc124cdd9b73efae25 mined in block 37
2021-12-15 08:38:21.695 [DBG] WLLT: Marked address SsjNJhTiKaQ736AKvq9w3SPHzUaJjYFyTCz used
2021-12-15 08:38:21.712 [DBG] WLLT: Marked address SscH7LcdfFw5x7UnMUJozTG8BTbEphUY8hE used
2021-12-15 08:38:21.712 [DBG] WLLT: Marking unconfirmed transaction 338e38b5d3ffdb18c6071479e20492977ee698e9f12b392d038507c943a9ed6f mined in block 37
2021-12-15 08:38:21.730 [DBG] WLLT: Marked address Ssc4fh5KHuYBYn6W2p5MniAVyd6D3JnoPYi used
2021-12-15 08:38:21.749 [DBG] WLLT: Marked address SsWBRtjE1kGr2swJNodXSWPKbsVpwG5yHPM used
2021-12-15 08:38:21.766 [DBG] WLLT: Marking unconfirmed transaction 4c911e79d805fb9ee0ad255aedcf01260ed32393ab17ed5848ce0ba206385f32 mined in block 37
2021-12-15 08:38:21.783 [DBG] WLLT: Marked address SsbRZVEKZTm5tHHdkhCdzAAQtYts2DTTC82 used
2021-12-15 08:38:21.800 [DBG] WLLT: Marked address SsmYu58iSMsTxJ8f9WMZwkLMT4EoJ6yDX36 used
2021-12-15 08:38:21.800 [DBG] WLLT: Marking unconfirmed transaction 62bb11615897b0277cbf595d606af210ac5a88277384f3890846d273963f1b55 mined in block 37
2021-12-15 08:38:21.800 [DBG] WLLT: Marked address SsrG5vr4DVMe3PoWKC2w9TUVEpbRWV88dr9 used
2021-12-15 08:38:21.818 [DBG] WLLT: Marked address SsZGRiFpZ6nACPJWDyZhZWvAaLWhuxwnMcZ used
2021-12-15 08:38:21.818 [DBG] WLLT: Marking unconfirmed transaction 9b3260082758f7a01ee53fea9d5eef9b8aac241150c2dac72f20f8c638807c44 mined in block 37
2021-12-15 08:38:21.818 [DBG] WLLT: Marked address SsZk5RCTxYUkEHPxhXWLvQajgK1NE5GPd3D used
2021-12-15 08:38:21.835 [DBG] WLLT: Marked address SskF2dfpnpJbdajgjTEMnD3iWduAbFGa6p4 used
2021-12-15 08:38:21.835 [DBG] WLLT: Marking unconfirmed transaction 12588a63e31cd2c26e80d7e8396100249f4c64c0c7a2e509eba3842689c3fcff mined in block 37
2021-12-15 08:38:21.852 [DBG] WLLT: Marked address SsoarmR32vddXM4C4KPfMTss6bjySDSaX35 used
2021-12-15 08:38:21.852 [DBG] WLLT: Marked address SsqpRR9ZoQS9fUcTijZwdS9fiQ4HuzRgKSo used
2021-12-15 08:38:21.852 [DBG] WLLT: Marking unconfirmed transaction 90b98f2d3a54b25707a016b26f2ce1f4875fe2b8b9b5e4e3eb7bd2b340551cd2 mined in block 37
2021-12-15 08:38:21.869 [DBG] WLLT: Marked address SsYnJobD8ZE5gmH5jy9nRUqD9MpSWYkYFia used
2021-12-15 08:38:21.869 [DBG] WLLT: Marked address SsivFp4swAqNgycpVAqCDLpjjhE76HEpsdS used
2021-12-15 08:38:21.869 [DBG] WLLT: Marking unconfirmed transaction 656ce26952d1b2709fe2f6660b818513f40f579a5fa9ec7a555be24b58ab49c8 mined in block 37
2021-12-15 08:38:21.869 [DBG] WLLT: Marked address Ssj3BwZ8wpMGYt1keaexVyqNJtMTsXZJtiB used
2021-12-15 08:38:21.887 [DBG] WLLT: Marked address SsiehT7bCVfGDJLPEdhPm9d7rb8yCVzno3W used
2021-12-15 08:38:21.887 [DBG] WLLT: Marking unconfirmed transaction f99e75d5d1f21e08e68c5a8331ceec56b54e9e888602150d92c3c052aa1ae611 mined in block 37
2021-12-15 08:38:21.887 [DBG] WLLT: Marked address SsfTRaUs3x77QsGYd5GV4M6F7FXSagz2iXL used
2021-12-15 08:38:21.905 [DBG] WLLT: Marked address Ssqpd1q8UieDmifaemAfJtwgBSqnZ5VJgbC used
2021-12-15 08:38:21.905 [DBG] WLLT: Updating processed txs block marker to 000088b0dfdea8c3c8f5085eb025923d1d8c97598e6ab6b0e951ed04a39b4be1
2021-12-15 08:38:22.047 [INF] WLLT: Returning address (account=0 branch=1 child=80)
2021-12-15 08:38:22.048 [INF] WLLT: Inserting unconfirmed transaction de3950da558c5abd9ceace0bf77de082a0fb9e78e475d4f4ec9ce238df936d06
2021-12-15 08:38:22.048 [INF] SYNC: Connected block 000088b0dfdea8c3c8f5085eb025923d1d8c97598e6ab6b0e951ed04a39b4be1, height 37, 10 wallet transaction(s)
2021-12-15 08:38:22.066 [DBG] WLLT: Marked address SshXtT6DtmXTdH1Dq8XxFcsXjxKnbAjngYf used
2021-12-15 08:38:22.066 [DBG] WLLT: Accounting for ticket commitment de3950da558c5abd9ceace0bf77de082a0fb9e78e475d4f4ec9ce238df936d06:1 (0.0002298 DCR) from the wallet
2021-12-15 08:38:22.067 [DBG] WLLT: Marked address Ssfiq9NTSGZaUHwkXidqcV6cMZym6UcD1pn used
2021-12-15 08:38:22.120 [INF] WLLT: Published ticket purchase de3950da558c5abd9ceace0bf77de082a0fb9e78e475d4f4ec9ce238df936d06
2021-12-15 08:38:22.120 [INF] WLLT: Split output is 433e937f503f400ef3f14ef0e077c6d4b52d4e9f953314982619bb82e54f3556:6
2021-12-15 08:38:22.154 [INF] WLLT: Returning address (account=0 branch=1 child=81)
2021-12-15 08:38:22.227 [INF] WLLT: Returning address (account=0 branch=1 child=82)
^C2021-12-15 08:40:28.462 [INF] DCRW: Received signal (interrupt).  Shutting down...
2021-12-15 08:40:28.470 [ERR] SYNC: Wallet synchronization stopped: rpcsyncer.Run: context canceled
2021-12-15 08:40:28.488 [WRN] DCRW: Stopping JSON-RPC server...
2021-12-15 08:40:28.505 [INF] DCRW: JSON-RPC server shutdown
^C2021-12-15 08:42:15.353 [INF] DCRW: Shutdown signaled.  Already shutting down...                                  
^C2021-12-15 08:42:17.381 [INF] DCRW: Shutdown signaled.  Already shutting down...
^C2021-12-15 08:42:17.788 [INF] DCRW: Shutdown signaled.  Already shutting down...

Update: this seems to be intermittent, was able to purchase tickets mining to SVH on another run.