Spark 2.5.8 hangs on launch occasionally

We are having a problem where the user launches spark on system startup, the executable shows in the process manager but the login dialog does not appear. The problem is intermittent but the only workaround is to kill the spark.exe and relaunch spark manually. Has anyone else experienced this or found a fix if this is a known problem? Our version is 2.5.8.

haven’t noticed that one. Please check 2.6.0 RC

I’m experiencing this since very old versions of Spark and i think with the latest SVN (RC) versions, but not to often. Maybe once per month or so. I think this depends on resources and other processes starting on Windows startup (like heavyweight antivirus solution).