Thank you for clarifying, and apologies for misunderstanding!
In regards to the UUIDs, have you tried double encoding these? The / and == can cause issues when they’re not double encoded. For example: /BTjZwi5T+CujsZy+gsZLg== should be double encoded as: %252FBTjZwi5T%252BCujsZy%252BgsZLg%253D%253D