| Debugger | Bug | PY-24022 | SystemError: unknown opcode |
| Bug | PY-24766 | Segfault in debugger with Python 3.6 |
| Test Runner | Bug | PY-23821 | nose generates a bunch of empty lines with no reason |
| Bug | PY-23820 | unittest generates a bunch of empty lines with no reason |
| IDE General | Bug | GO-3989 | Nightly plugin and EAP 9 IDE don't seem to agree on which to install |
| No subsystem | Bug | RUBY-19689 | Creating a new project hangs for ever in indexing |
| No subsystem | Bug | IDEA-170494 | InaccessibleObjectException: Unable to make field accessible in DebugReflectionUtil on JDK 9 (java.base does not open java.util.concurrent.atomic/jdk.internal.misc) |
| Editor. Editing Text | Bug | IDEA-161586 | Intermittent Intellij hangs with 2016.2.4 on Linux |
| Terminal | Bug | IDEA-172594 | Terminal session takes long time to initialize in EAP 2017.2 |
| User Interface | Bug | IDEA-174304 | Editor background image hides editor gutter (VCS) marks |