Have 2021 and about 30K photos. I select a tag, say one of my people, and then scroll down to see the older ones of that person (there are several thousand). I double click on one to look closer. All good. But if that is not the one I wanted, I click on the Grid icon in the upper left to go back to all of the matching photos. And it does for a fraction of a second but then clears all of the tags and goes back to the top. Almost like it read two clicks and then applied the second to the All Media button that replaces the Grid button. It does not happen every time, but most. So seems to be some kind of timing issue. It makes it EXTREMELY frustrating to use now though.
Are you by chance 'double clicking' on the Grid button on the upper left? A single click on the 'Grid' button should take you to the media of the selected tag, 'Grid' button at this point is replaced by 'Back' button. Clicking on 'Back' button will now remove the tag selection and show all media.
Still no word or update on this? It is hugley painful to use the product this way. And I have noticed the same thing happens with Albums too. If I select and Album, it filters to the contents fine. But if I then click on one item to get a closer look, and click the back arrow, it will flash and reset to the full Grid view and I have to reselect the Album. I am NOT double clicking.
In case anybody else is having this issue and cares what is happening, I think I figured it out. It is easy to make happen now that I know, but not too easy to avoid (apart from a real steady hand and insensitive mouse).
The problem occurs if a WM_MOUSEMOVE messages comes in between the WM_LBUTTONDOWN and the WM_LBUTTONUP windows messages. In all the working cases with a single click, the WM_LBUTTONDOWN and the WM_LBUTTONUP come in back to back (using Spy++). When it reverts back and clears the tag, there is always at least one WM_MOUSEMOVE between the two. To reproduce this easily then, do the following: