I don't think nativeKONTROL would have a problem with me copying this bit of text from the forum over here (considering a lot of the people here are having problems for this exact reason). If I am wrong, I apologize....
Lots of changes were made in Live 9.1.2, some of which cause our Live-related products to not work correctly or even at all unfortunately. The following lists denote the state of Live 9.1.2 compatibility for all of our Live-related products. Please note that 9.1.3 compatibility (currently in beta) has not yet been determined. Also, given that the release of 9.1.3 is likely to happen in the relatively near future, we will not be sending out updates to current users until 9.1.3 is released. If you'd like to receive an update sooner than that, send an email request to me or to support.
Following is a list of products that are compatible with 9.1.2 (no update/fix required):
apC-CL1/apC-CL1+TC1
LPC-Live
MPDRx
MPKRx
nLII-Plus
NPKLive II
omC-LiveA/omC-LiveB
Following is a list of products that have been updated for compatibility with 9.1.2 and updates have been sent to current users:
blockLive
omC-Live
pKC-Live
Following is a list of products that have been updated for compatibility with 9.1.2, but updates have not yet been sent to current users:
apC-CL3/apC-CL3+TC3
Following is a list of products for which beta version are available that fix incompatibilities with 9.1.2:
Link
MXT-Live
PXT-Live
PXT-Live Plus
Following is a list of products that are not compatible with 9.1.2:
MapEase Series - see this post for more info.