I'm having trouble with QMC2 Arcade since the last release. None of the games show up in the launcher. I ran QMC2 MAME first to ensure that the settings are correct. I initially had a problem with a missing mame.rsc file, but I ran "Check ROMs" and it added it in the qmc2 folder. Now I still appear to have 2 problems.

1. It says it can't open machine list cache.
2. It has several QTWarningMsg errors when loading either Darkone or ToxicWaste.

Console errors are below. No problems up until these errors. Any suggestions?

19:06:33.083: Loading machine list from 'E:\emulator\qmc2'
19:06:33.254: FATAL: Can't open machine list cache file 'E:\emulator\qmc2', please check permissions
19:06:33.254: Done (loading machine list from 'E:\emulator\qmc2') - 0 non-device sets loaded
19:06:33.270: Starting QML viewer using theme 'ToxicWaste'
19:06:34.937: QtWarningMsg: qrc:/qml/ToxicWaste/1.1/ToxicWaste.js:203: TypeError: Result of expression 'machineListModel[machineListView.currentIndex]' [undefined] is not an object.
19:06:34.937: QtWarningMsg: qrc:/qml/ToxicWaste/1.1/ToxicWaste.qml:425: TypeError: Result of expression 'machineListModel[machineListView.currentIndex]' [undefined] is not an object.
19:06:34.937: QtWarningMsg: qrc:/qml/ToxicWaste/1.1/ToxicWaste.qml:404: TypeError: Result of expression 'machineListModel[machineListView.currentIndex]' [undefined] is not an object.
19:06:34.937: QtWarningMsg: qrc:/qml/ToxicWaste/1.1/ToxicWaste.js:197: TypeError: Result of expression 'machineListModel[machineListView.currentIndex]' [undefined] is not an object.
19:06:34.937: QtWarningMsg: qrc:/qml/ToxicWaste/1.1/ToxicWaste.js:74: TypeError: Result of expression 'gameObject' [undefined] is not an object.
19:06:34.953: QtWarningMsg: qrc:/qml/ToxicWaste/1.1/ToxicWaste.js:197: TypeError: Result of expression 'machineListModel[machineListView.currentIndex]' [undefined] is not an object.
19:06:34.984: ToxicWaste: Starting initialization
19:06:34.986: Loading global and theme-specific settings
19:06:34.988: ToxicWaste: Initialization done
19:06:35.066: Activating windowed display
19:06:35.081: QtWarningMsg: ShaderEffectItem::paint - OpenGL not available