This is specifically related to many of the free assets available on Roll20, while I am uncertain as of when the change exactly happens it seems another batch of assets have been 'lost' to the search engine. These assets seem to still exist as they persist on maps where they have already been placed, however looking for them using the prompts which formerly worked doesn't seem to bring them up any more. As I'm uncertain as to if this is something Roll20 has intentionally done due to licensing issues with the assets or if this is some issue which has arisen due to changes to the asset search function I chose to post this here. While there are certain workarounds for those of us which want to keep using these assets, it's obviously a bit inconvenient and makes mapping more tedious for both free and paid users alike to lose access to these assets without warning. If this is some manner of issue with Roll20 being able to serve these assets during searches, I'd be curious to hear a response even if nothing can be done about the issue. While I'm aware users can preserve assets using the 'Copy to Library' function. I'm uncertain if using the 'Copy to Library' function on assets accrues user space, though presuming it does then I'd say having to spare some of the space I am paying for to secure copies of these ostensibly free assets for fear they will suddenly vanish one day is a bit of a nuisance. Overall I believe this may be an issue in the search engine however; as the items lost seem to be arbitrary without a clear trend.