Created attachment 139496 [details]
Crash Log - 2018-02-01
Downloaded and installed next to a 5.4.4 installation. Each version is renamed to match its version (i.e., "LibreOffice 5.4.4.app" and "LibreOffice 6.0.3.app"). Launched V6.0.3 and opened an existing file known to work in earlier versions. LibreOffice 6 crashed and went into "infinite recovery loop": application offers to recover the file, crashes after recovery and restarts the process.
Renamed V6.0.3 to default "LibreOffice.app", relaunched the program this time creating a new file from the Start Center. Crash on save and again into "infinite recovery loop". Attached is the crash log.
V5.4.4 continues to work properly. Please let me know if there is any other information you need to know. Thank you.
Thanks for reporting this issue.
It seems it's a dupe of bug 112990
*** This bug has been marked as a duplicate of bug 112990 ***