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“Cache full” means different things depending on where the warning appears. In a playback app such as Kodi, it usually means video is arriving too slowly to play smoothly. On an ATEM Mini Pro or Extreme, it means the encoder’s outbound safety buffer is filling because the network is not delivering data fast enough for the configured stream. Identify the app or device first: the right fix for playback buffering is not necessarily the right fix for an encoder warning.
First, identify which cache is full
Are you watching a video, or sending a live stream? Note the name of the app or hardware displaying the warning, and whether the symptom is playback buffering or a problem with the outgoing broadcast. The two cases point to different parts of the delivery path.
- Playback app: video is not reaching the player quickly enough, so playback pauses or buffers.
- Production encoder: the buffer holding outgoing video frames grows when the connection cannot sustain the configured stream. If it reaches 100% on supported ATEM models, the stream can be compromised.
If Kodi shows “Cache full” while you watch
Kodi’s archived FAQ, last edited September 16, 2022, describes “Cache full messages and constant buffering” as a sign that video is loading too slowly for smooth playback. It says the playback cache is held in RAM and clears when the video is stopped. The FAQ identifies the connection to the remote server as a common bottleneck, so a fast home connection alone does not guarantee that a particular source can deliver the video quickly enough. Read Kodi’s archived cache FAQ.
Work through the source and connection
- Check whether it affects one video or many. If only one item buffers, investigate that source and its server path. If several sources buffer, consider the connection between your device and those services.
- Stop and restart playback. Kodi’s FAQ says the playback cache clears when the video is stopped. This can clear the current playback state, but it does not make a slow remote source deliver faster.
- Do not copy an advanced cache setting without checking your version. Kodi points advanced users to
advancedsettings.xml, but the archived FAQ is not current, version-specific setup guidance. Check the documentation for the Kodi version you use before changing cache settings.
If an ATEM Mini Pro or Extreme shows a full cache while streaming
On these Blackmagic Design switchers, the cache is an outbound buffer for video frames. Blackmagic’s June 2024 ATEM Installation and Operation Manual says the buffer grows when connection speed cannot support the stream; once it reaches 100%, “the video stream will be compromised.” The manual recommends testing the connection during setup and lowering stream quality if the cache repeatedly approaches full. See the ATEM Mini manual.
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Check the broadcast data rate and cache percentage
- Open the ATEM multiview and inspect the streaming status, including broadcast data rate and cache percentage.
- Test the connection during setup, as Blackmagic recommends. Watch for the cache repeatedly climbing toward 100% rather than reacting only to a brief fluctuation.
- If the cache often nears full, lower quality in the live-stream settings and observe whether the buffer remains lower during a comparable stream.
- For ATEM Mini Pro and Extreme, Blackmagic gives approximately 5–7 Mb/s for 1080p60 without losing frames. This is a model-specific manual figure, not a universal upload-speed target for other encoders or platforms.
Investigate the network path if it keeps happening
Compare the encoder’s configured quality with the delivery rate it actually sustains. Check for variation on Wi-Fi and, if the encoder supports it, consider testing over wired Ethernet. A cable can reduce wireless variability, but cannot guarantee enough upstream capacity or resolve a slow server or congested route. Blackmagic documents Ethernet streaming on the ATEM Mini Pro. A Cat6 cable is an optional way to make a wired test; it is not a fix for every cache warning.
If the problem persists, check the upstream network path and the service endpoint or platform configuration. User forum reports describe different outcomes, but they are anecdotes, not established manufacturer fixes; switching protocols is not a reliable default recommendation.
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When restarting or clearing an app cache might help
For an application-level issue, restarting the app or clearing its cache may help in some less severe cases. BoxCast’s July 2026 explainer also notes that persistent overload can point to workload capacity. Those general app-maintenance suggestions do not establish that clearing a cache will fix an encoder’s network-delivery problem. If the warning is on production hardware, prioritize its cache and data-rate status, stream quality, and network path.
Common mistakes to avoid
- Treating every “cache full” warning as the same error: distinguish playback buffering from an encoder’s outbound buffer before changing settings.
- Assuming faster local internet fixes a slow source: the remote server or route can be the bottleneck for playback.
- Applying ATEM bitrate guidance to every stream: the approximately 5–7 Mb/s figure is for 1080p60 on the named ATEM models, according to Blackmagic’s June 2024 manual.
- Clearing an app cache to solve a hardware delivery problem: app maintenance is not a substitute for encoder and network diagnostics.
- Buying new hardware or adding RAM without evidence: first establish that local processing or storage is actually the limiting factor.
Or let it run in the cloud
If your goal is to keep a YouTube channel live 24/7 using uploaded videos, StreamNeo is a separate option—not a fix for a Kodi playback warning or an ATEM network issue. Upload a recording or build a playlist, add your YouTube stream key, and go live; StreamNeo loops the video from the cloud, so nothing has to stay on at home. It streams uploaded videos to YouTube only, not from a camera.
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