Q.hose sprayers
Can a ready to use garden hose mix sprayer get clogged? It seems like it is getting ;more liquid in the bottle than it started with. I’ve not had this happen before.

This is not a sprayer I fill & can check. It is one I bought with chemicals already in it.

Yes, it's possible for those sprayers to malfunction. Check the attachments prior to filling.
If it isn't working properly I would recommend replacing.
I actually use mine for a few seasons and then replace.
It's more inexpensive to replace a plastic sprayer then to replace the fertilizers.