This seems to have fixed the problem, thank you. Not sure why it was defaulting to an edge that couldn't be selected.

Thanks

@fredo6 said:

When you select edges in FredoCorner, there is an Edge Filter to exclude or include edges with given properties (in general, you exclude edges which are not plain, that is, hidden, smooth, soft).

[attachment=0:1xn4bcnm]<!-- ia0 -->FredoCorner Filter edges.png<!-- ia0 -->[/attachment:1xn4bcnm]

So the message comes from the filter.

When I try to use any of the corner tools (round, bevel, etc) I get the "invalid - no match of edge properties". Never had this issue when I used free version of Fredo round corner.

I just purchased a license for Fredo corner after using Fredo round corner as I wanted the option to bevel.

Now when I try to use the tool, I get the error "invalid - no match of edge properties". All plug-ins are up to date.

Can you advise on what problem may be. I'm running Sketchup Pro Version 19.3.252 on Mac 10.15.7.

Thanks