I’ve noticed this OneDrive issue when viewing uploaded game captures to OneDrive, and it’s especially apparent as I’m using a 21:9 display. Captured videos are letterboxed in a way that adds black bars to all sides of content.
The workaround is simple: instead of navigating to onedrive.live.com > Photos > Gallery, you’ll want to find the video in OneDrive’s file directory.
Update 9/30/25: This seems to be a well documented issue (this is the most recent reddit thread I’ve found). Restricting the Chromecast to 2.4 GHz only temporarily resolved the issue. DFS channels as well as IPv6 are also disabled on my router.
Some months ago, I purchased a Chromecast with Google TV (HD) at Target. The model was on sale and my aging Sony X800D slowed to a crawl when using the built in Google TV functionality. Considering the price point, it was perfectly acceptable and much, much faster than the TV itself. Eventually, I ran into continuous Wi-Fi disconnects.
This is a simple issue I ran into when first encrypting drives with BitLocker. The problem is related to a step in the encryption process where you’ll need to save the encryption key to a secure location. It’s likely that you’ll need to save to a specific server in your environment, but the mapped drive will not be visible when the mini File Explorer dialog box pops up.