I did a quick search in the forum for "alt tab" but found nothing relating to my specific issue.
Before installing Multiplicity, I can alt-tab between windows on my primary machine with no problem. They go right back to where they were when I tabbed away. For example, I have a spreadsheet open in Microsoft Excel and a webpage open in Microsoft Edge. When I alt-tab to the Excel sheet, it puts me right back on where I left off, alt-tabbing to Edge brings me right back to the webpage and I an continue scrolling on either.
After installing Multiplicity, whenever I alt-tab between applications (again, using Excel and Edge as my examples) it activates the the ALT key as if I'm accessing the menu. When I alt-tab back to Excel, I get the letter shortcuts for the menu options and have to hit ALT again to clear it. When I alt-tab to Edge, it highlights the 3 vertical dots menu on the upper right. I have to click back on the webpage to get it back to normal.
Is there any option or setting to turn this off, or is it a built-in function of Multiplicity? I'd really love to use it to control the other computers on my network, but the alt-tab issue is a hassle when I'm logged into work taking calls and tabbing between windows, having to clear the ALT each time.