[GNC] Upgrade problem on ver 5.13

[Graham Taggart]

I have recently upgraded GnuCash to version 5.13  from 5.11 (running on Widows 10) but since the upgrade GnuCash runs very VERY slow to be unusable.

The files I use are very simple, basically glorified cashbooks for 3 small motorcycle clubs.  All were working perfectly before the upgrade.  In particular one file appears to crash the program when its selected, leaving a half completed update bar on the bottom of the screen.  I then have to use Task Manager to kill the program.

I have tried deleting the program and reinstalling but that makes no difference.  Is there any transaction repair functionality within GnuCash?  I would be grateful for any suggestions how to correct the position as at the moment I can't use the program for any of the accounts.

Thanks
Graham