Preset Window doesn't display new presets

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[/code]When I attempt to add a new preset in FF 11 it shows that it added the preset, yet the scroll bar stops and it does not display the new preset in the window. This is after I have added a number of presets to fill up the window. You can see that it added the preset (the number of presets changes at the top) however, again, the scroll bar stops and you cannot see the new preset nor access it.

A few facts:
* I am using this as a standalone application vs a plug-in in this case.
* Windows 10 Pro on a desktop machine; Core i7-5820K CPU, NVIDIA GeForce GTX 1070 Ti, 32 gb Ram
* this issue seems to not be an issue on my laptop (Windows 10 Home), but does happen from time to time, but not as often.

I thought maybe this was due to a large amount of presets, however, I tried it with a filter with only around 40 presets, and it did the same.

Why does the window scroll bar stop working? Is there a set number of presets it can use? I have been using FF since FF2 and havent encountered this before.

Any ideas? or has anyone else experienced this?

Accidentally uploaded screenshot again