Temporal Flux is currently disregarding part of tech descriptions when saving, causing a crash in the menu when opening dual or triple techs. If your tech descriptions are still in their original space, do the following:
Open Window > Custom Data and click New. Set Start Offset to C439D, End Offset to C43AE, and Override Free Space to true. The name can be anything, but something along the lines of "tech menu fix" would be useful for reference.
Edit: Additional space issues can be fixed with the following ranges:
0C36F3-0C36F3 - item description
CDDBC-CDDC5 - battle message
3FD554-3FD561 - Settings
6F400-6F4D3 - location names
If you have existing corruption, and can locate the conflicting data, open the ROM and export the packet that's conflicting. You'll need to repoint the packet that is conflicting. Search for the address of the packet's start (F336CC for item descriptions, BCDDCC for battle messages, and 54D5FF for settings). Change the first byte in that result to be one above the end location (F4 for item descriptions, C6 for battle messages, or 62 for settings). Manually copy the original text for that range from a working ROM in a hex editor.
Once that is done, you can import the old data and resave.
It should properly protect string packets that have been relocated, but I'll test that more later.
Edit: 3.04 has a stable release. See last post.