Also seeing this in the logs:
01:24:15 [INFO ] [ RuneMate] Logged in to RuneMate SSO
01:24:28 [INFO ] [ RuneMate] Created bot group 19020/Cuppa Corrupted Gauntlet/6362f44e
01:24:28 [INFO ] [ RuneMate] Spawning attach JVM...
01:24:29 [INFO ] [ RuneMate] "Attach" is not supported on this system.
01:24:29 [ERROR] [ RuneMate] Failed to bind to client
com.runemate.client.bind.SessionInitializationException: Failed to bind to client
at nul.IiiiiIiiiiiIiIi.iIiiIiiIIiiIIII(bwd:26) ~[RuneMate.jar:?]
at nul.IiiiiIiiiiiIiIi.run(bwd:6) ~[RuneMate.jar:?]
01:24:29 [ERROR] [ RuneMate] Failed to start session
com.runemate.client.bind.SessionInitializationException: Failed to bind to client
at nul.IiiiiIiiiiiIiIi.iIiiIiiIIiiIIII(bwd:26) ~[RuneMate.jar:?]
at nul.IiiiiIiiiiiIiIi.run(bwd:6) ~[RuneMate.jar:?]