Andrew,

When for example the last used folder was ...QCAD/libraries/templates/metric
On 'New from Template...' the panel previews a list with templates in that folder.
=> Expected behavior

In the top Drop-down list called 'Folder' I can select ...QCAD/libraries/templates
In my case there is only one item listed.
But that doesn't update the list in the preview panel.

Strangely enough when I now hit the 'Up' button the list is updated for ...QCAD/libraries
Or one up from ...QCAD/libraries/templates while the content of ...QCAD/libraries/templates/metric was still showing.

Navigation in the list panel works as expected.
Opening a different folder with the button 'Choose Directory' is also working as expected.

Also (starts to) works as expected with more than one item in the Drop-down list.
With starting over new there is again only one item to select.
Again failing to synchronize when selected.

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Not reacting on the drop-down list 'Folder' with one option can be replicated in 3.27.6 Win7 32bit

Regards,
CVH