Setup: runtime 16.0.5 with 2 databases.
When the secondary database is opened a script is called "OnFirstWindowOpen" that at some point calls "Adjust Window (Resize to Fit)". Under Windows10 (Build 15063 ) this step causes the runtime to crash; all fine on MacOSX.
Anybody having experienced such a behaviour?
I did not test this with version 17 yet as this is currently not an option and also may introduce other issues.
I'd try a test on a new file to see if it has the same result. If it occurs on the new file then you have some kind of conflict that could be resolved by an update to FileMaker or your OS or removing an extension that might be conflicting with FileMaker. If the problem doesn't happen in the new file, you likely have some corruption. If this is the case, I'd revert to a backup that doesn't crash and import your current data from the corrupt file.