Remote node is endurance, channel id is f3f72886a022c36329257fc459478201512d2744facffc3a3b343a4e25e9ce34, there were two stuck HTLCs with expiration at block 1575802 but endurance was not failing them after that deadline has passed.

Channel was eventually force-closed by endurance with this commit tx: https://testnet.smartbit.com.au/tx/5176657c307a30ae61d3217cfcca8b7d5e0aba297dfa2b2911e826d559db2abb