Before the update to Openhab 2.5 the MCP23017 binding was running on Openhab 2.4 without problems. After the update to 2.5 this binding is not working. In the log file there is no error message and all things are online in the Paper UI. But no input and output is working.
I uninstalled the MCP23017 2.5 binding and put the 2.4 jar file into the addons folder. Now it´s working again!
Any known bugs with the MCP23017 2.5 binding?
You can check here:
Looking at other issues the solution, for now, is to add the 2.4 jar file.