Nordic BLE Sniffer Logs Stuck

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So I'm using the Nordic BLE sniffer with the included plugin to capture logs for a specific device. After sometime (sometimes a few minutes, sometimes a few hours) the logs suddenly stop coming in, even though the device is communicating over the air. The only way to start again is to restart the application.

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I don't suspect it's the sniffer that's malfunctioning since resetting it doesn't fix the problem but restarting the Wireshark application does.

If it's not the sniffer, it's a Wireshark bug (even if there's some non-Wireshark-bug underlying problem, the fact that Wireshark just stops showing packets, rather than reporting the underlying problem, is a bug), so please report this as an issue on the Wireshark issues list.

Does the Wireshark have a limit to the number of logs it captures/displays?

Presumably you mean "packets" (a "log" is generally thought of as a capture file with multiple packets). There is a limit imposed by the widget that displays the packet list; Wireshark 3.2 and later impose a limit of 53 million packets to avoid the crash caused by exceeding that limit - instead, Wireshark stops reading the file and pops up a dialog box saying that too many packets are in the file so all additional packet will be discarded.