Hi Rob,
This crash has not originated in Blink's code. This stack trace record is really strange:
14 ??? 000000000000000000 0 + 0
This looks like a wrong task switch, but I am not sure. The thread that has crashed is CrBrowserMain. This is Chromium's main thread, and belongs to the web browser component of PixInsight 1.8.5, that is, QWebEngineView. Please let me know if you encounter this problem again.
*** Error: Parsing ISO 8601 date/time expression: wrong number of date components
Actually, you have discovered a bug in the PSM parsing routines. This error message should not be generated. I cannot fix the .psm file because it is correct; it's the core application what needs to be fixed —I'll do so next week.
Sorry for your lost work!