I was trying to use the Autoincrementer plugin (the 6.5.x compatible version) with TC7, and it seems to load the plugin properly but when I try to use an %autoinc.<property>% none of my builds will run. All the build agents show incompatible because:
Looks strange. It works for me without any additional configuration.
I have the same problem here. Incompatible agent when trying to use that variable. Tried restarting both server and agent. Did you get any further with a solution? Or just not use the plugin?