iRule crashes when relaunching/resuming after using other apps (Android)

Running into this bug on both a Nexus 5 (Android 4.4.2) and Note 3 (Android 4.3), both devices running iRule 2.0.5.

When running iRule, if you switch to other apps and later return to iRule, it crashes before actually resuming. This happens more frequently as the number of other apps used before returning to iRule increases. Hadn't happened before v2.0 and doesn't happen with any other apps.
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