Slow startup on Windows 10, v2.6.18

[Steve Goings]

I've been using 2.6.18 on Windows 10 for some weeks with no problems until
recently.

Now, startup gets very slow as Gnucash renders the first report that was
displayed in the last session. It takes about 30 seconds to render that
first report. Then the other reports render quickly, as expected.

When I close all the reports and then close Gnucash, restart happens
quickly as expected. Then when I try to run any report, there is again
about a 30 second delay to render that first report, no matter what it is.
After that, other reports are rendered quickly.

I have created a new Gnucash file, with the basic accounts, and no data,
and get the same delay when rendering any of the standard reports the first
time.

I have removed and reinstalled Gnucash 2.6.18, to no avail. When I look at
the Windows task manager, nothing seems to be eating CPU cycles or doing
anything to slow down the system.

I also have the latest Mac version of Gnucash running on a MacBook Pro, and
it does not have this problem on the same data file and reports.

Seeing this long delay after seeing none earlier has made me worry about
some problem in the installation on Windows. I have tried clearing out all
the Gnucash support files, such as I can find and reinstalling. None of
this helps.

Is this long delay on Windows for the first report rendering expected
behavior now? If anyone has some ideas I would be grateful.

In the meantime, I have gone back to 2.4.15 on Windows, and it works
without any of the delays, but I would prefer to use the newer release if
possible.

I tried the development release, and it would not even run on my system.

Thanks in advance for any advice or suggestions. I did report a bug on
this,

SG