Lightroom classic Export Change Sessting

There are three buttons at the bottom of the Export dialog, Done / Export / Cancel.

[Done] : any changes made to the export settings will be remembered - but no export is carried out.

[Export] : any changes made to the export settings will be remembered, and the export proceeds

[Cancel ] : any changes just made to the export settings will be forgotten, and no export is carried out.

The initial settings that you see each time you return to the Export dialog, depend on what has happened before. So it would be up to you to check that no unwanted settings have been remembered. For example, if Done had been accidentally clicked rather than Cancel, after changing settings to something you then did not want to proceed with.

Accordingly, my recommendation - and my own practice - is to save out your preferred, tested export setup in the form of a named export preset. Chances are, there may be several such presets for different specifications of export. But these don't need to each specify a fixed destination; that can be prompted for each time under the "choose folder later" option.

So that can be used to ensure consistency. Clicking on a preset's name (as opposed to its checkbox, which has a different purpose) reinitialises all of the export panels, to whatever settings it includes.

What panels? What settings? Please post a screenshot to explain what you are referring to, because I doubt anybody will understand it right now.