I have a different behavior between the newest mos tool and an older version when a try to flash one specific ESP8266 board. While flashing with the old tool (v2017011816) seems to succeed the new tool (v1.23) aborts with the following message: "Error: lost connection with the flasher: flasher did not respond". I reduced the baudrate down to 38400 without success.
Is it possible that the old mos tool does not do a proper verify? Because once I try to run the firmware the ESP8266 constantly restarts.
Do you have detailed release notes for each version of the mos tool?
Please find my console logs for the old and the new tool in the attachment.