Posted earlier in "how do I" but dropping anew here by recommendation.
I have been experiencing the spinning circle of doom on my Garmin Montana more often as of late -- cache description and/or hint and/or logs just won't load. But it's not for every cache. For example, the other day I was unable to see the descriptions for this cache but was able to see this one just fine.
I have been loading caches using GSAK and the GarminExport macro, but I've also experienced this in the past using
[ Warning excessive nerdiness follows. ] Since you're curious, Garmin's GGZ and observation of the units behaviour offers a pretty good hint on why this has been a problem with dozens of Garmin models. I've not reverse engineered them to confirm this and I could be wrong, but I have a bit of relevant engineering experience here.
If you add a big GPX file and boot, you'll notice it takes a long time. Some combination of the XML parsing and putting into the unit's internal (probably sqlite3) d