I am running Windows 10 and recently upgraded from 2.6.52 to 2.6.66. If I choose to run Cura right after installation everything works fine, but if I try running it again (either from the shortcut or installation folder) I receive the following Qt error:
I have tried setting QT_QPA_PLATFORM_PLUGIN_PATH to C:\Program Files (x86)\cura-lulzbot 2.6\PyQt5\plugins\platforms (which does contain qwindows.dll) but I receive the same error with a pathname specified. Reinstalling allows me to run Cura again. I do not have any other Qt installations.
Any suggestions on how to fix this?