After the command: elements-cli importaddress xpto (where xpto is a valid address) it starts to rescan and 47 min later:
wallet/wallet.cpp:1528 (RescanFromTime)
Internal bug detected: 'chain().findBlock(result.last_failed_block, FoundBlock().maxTime(time_max))'You may report this issue here: https://github.com/ElementsProject/elements/issues
(code -1)