We have two users on ArcReader 10.6.1 that have noticed the Find tool quits working after a 30-60 minute period of inactivity. In order to get the Find tool to work again they have to restart Reader.
I commented out all locators in the defaultlocator.xml file this morning (see a similar thread here) but that didn't resolve the issue. Even so, they are not searching with the default locators but from features within the pmf.
Both users were just upgraded to Windows 10, 64-bit and 8GB RAM last week and I think they said they were noticing the same problem when they were on Windows 7 and likely ArcReader 10.4.1 or 10.5.1.
Has anybody else experienced this issue in 10.6.1? Is there a fix different from what I referenced above? Sometime soon I should have a Web AppBuilder app available that will replace any need for Reader but I'm hoping there is a quick fix to keep them going until then, or at least avoid having to close and reopen Reader.