This morning, I was working on DXO PL3, to view the pictures taken the day before. After viewing more than 400 photos, I wanted to close DXO PL3. Impossible. The click on the closing cross or the FIchier menu was absolutely no longer active. I waited 5 minutes, before trying again, thinking about a memory refresh problem (I have 32GB RAM, on the machine), but nothing to do.
So I had to close DXO PL3, via the Task Manager.
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