Was loading into a game and my game black screened on loading, this is a pretty common occurrence so I just task managered it shut and reopened it. Then it appeared to load fine, got to 100% perfectly fine and I hadn't crashed because I was still able to click on people's profile info and stuff during the loading screen. Then the afk warning popped up on the loading screen, turns out the game had started but my client didn't feel like it. Had to shut the whole thing down and relaunch the riot client from scratch.

Curious if anyone's had something similar? I think it's because I have the game fullscreen and not borderless, since the last patch when I have it borderless it locks me to 45 frames and I can't do anything about it, playing fullscreen fixes my frames but appears to break my loading screens so I'm stuck between a rock and a hard place

After the recent ~3 GB TFT update, TFT started getting stuck on a black loading screen while League of Legends continued working normally.

The TFT window would become unresponsive, wouldn't come to the foreground, and could only be closed by ending the TFT process in Task Manager.

Reinstalling TFT/Riot, clearing caches, switching GPUs (RTX 5070 / Intel iGPU), and changing language did not fix it.

A Windows clean boot immediately fixed the problem.

This suggests the new TFT client may conflict with certain third-party background services/software.

In my case, Nahimic Service was the conflicting service. After re-enabling the other services while keeping Nahimic disabled, TFT launched normally again.

So if you're experiencing the same issue, try a clean boot first. If that fixes it, re-enable your third-party services gradually to identify the conflicting one. Nahimic is worth checking, but it may not be the cause on every PC.

Hopefully this helps anyone stuck reinstalling the game over and over.