If you create a blueprint for a belt line and then erect it with construction robots, some belts won't work. You have to manually dismantle and rebuild them for them to function. Furthermore, these belts can't be dismantled using the demolition plan; they can only be dismantled manually. I've only tested this with the blue belts. I don't know if it's the same with the other belts.

Hi, yea interaction with blueprints and upgrade/deconstruction plans is broken, working on it, fix will be in new version, maybe this week

Version 1.1.0 is up. Interaction with blueprints and upgrade/deconstruction plans is fixed, also 1.1.0 have new feature with variable speed belts depending on power ratio provided by engines