After the latest update to Visual Studio 2026, my .NET 9 Maui project has stopped automatically building whenever I click the "Run" option while in debug mode. It also applies to when I clean the Bin and Obj folders, which do not get rebuilt, until I manually click build.

I have no idea where to even look to find why it no longer auto-rebuilds whenever I run the project after some code changes.

I've looked in Options > Project & Solution, and the only things I've found, I didn't need to change as they were already on.

I've also tried to do CLI workload fixes as suggested as possible solutions, but neither dotnet workload repair or dotnet workload install maui had any effect

I have no idea what happened, what changed, or how to fix it.

Just all of a sudden, each time I make a change in the code, I have to manually click "Rebuild" otherwise, there is no effect if I just run the project again.

It is rather frustrating.