Hi guys,
I've had a bit of a problem replicating the errors you are getting so I've made a test fix which is somewhat of a nuclear option - it now ignores all modifier keys. If this works, then I will have a better idea of what the problem is.
Could helpful testers please download and try:
http://selflanguage.org/files/releases/4.4/beta3/Clean-4.4.beta3.snap
Many thanks!
Russell