Inventor 2019: Can't choose the axis with the axis-to-axis constraint

[SteffanRJ]

I'm running inventor 2019 and I'm having a problem with my constraints.

I'm just trying to mate axis-to-axis, but for some reason inventor doesn't find the axis. If I try to delete old axis-to-axis constraint, then I'm still not able to make the same constraint. 

Does someone know why this is?

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@SteffanRJ,

marius.gildehaus has edited your subject line for clarity
Original: constraint axis-to-axis does not work

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[Anonymous]

So, came to this thread because I was having the same problem, couldn't pick an axis in the mate constraint in my new 2019.2 install of Inventor.  I have been using Inventor for years and never had to even think of switching to mate, so didn't even consider that would be the issue.  Glad it is a simple switch, but not an optimal setup obviously....

The mate and flush have always been a clunky to me, hard to find the arrows on the planes in the assembly, so I end up guessing at times or taking time trying to find the plane normal.  Now it is more clumsy with the potential with another click just to be able to pick axes....

[Anonymous]

This was driving me bonkers. Thank you!