Logic Pro X Beats to region problem

morph114

Logician
Hi all, I'm running LPX 10.4.6 on macOS 10.14.16. In the beat mapping menu, Beats from region is having no effect at all. The normal dialogue to choose a note value does not appear and no changes are made to the tempo map. I have access to another Mac running LPX 10.4.4 and this behaves as normal. Does anyone have any ideas what could be wrong?

Many thanks
 
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