When I open two .odt documents at the same time, I can't select text (neither with the mouse, nor with SHIFT nor CTRL + SHIFT). It appears to happen when both documents windows open one below the other (docking the document to half my screen), but not when I move one to the other half, close them and reopen both. Now, it appears that I can select text after focusing other window (ALT + TAB or click other window) and going back. How to reproduce: Open two documents at the same time (select them in the file system and press ENTER). Try selecting the text using mouse, SHIFT, CTRL + SHIFT. If you can select the text (bug not shown), repeat or move one of the document's window and then repeat. If you can't select the text (bug shown), focus other window (ALT + TAB or click other window) and try to select the text again. You should be able to select it now.
Reproducible. Version: 24.2.5.2 (X86_64) / LibreOffice Community Build ID: bffef4ea93e59bebbeaf7f431bb02b1a39ee8a59 CPU threads: 16; OS: Windows 10.0 Build 22631; UI render: Skia/Raster; VCL: win Locale: es-ES (es_ES); UI: en-US Calc: CL threaded Changing to the other windows it works fine.