The build 293.1 is available.
Not a ton of fixes in this version, as we focused on ground work on the runtime to reduce the risk of false positives incorrectly reported by some anti-virus programs. We'll try to release a beta with more fixes asap.
Note: this version has a new "Unpacked EXE" option in the Windows tab in the application properties. If this option is selected, DLL's and extension files are copied to a Modules sub-directory (you can change the name), and the app data are saved to a .DAT file with the same name as the EXE, this may reduce a bit the risk of false positive. You can use this option if you get false positives in the future and don't need a single EXE without other files. However the best and most secure solution to avoid false positives is signing your EXE with a code signing certificate (not free), and not use this option so that your app data is signed too.
If any issue specific to this build, please post it here, thanks!
In case of problem you can reinstall any other version (no need to uninstall first, just reinstall the patch of the build you want to reinstall).
PS: the CF 2.5 patch updates all the installed exporters, as well as the 2.5+ DLC, you do not need to reinstall them.