Hey, sorry to hear about these troubles. Have you connected with our customer support team? They can be reached on Twitter at twitter.com/hootsuite_help or online at hootsuite.com/help . They should be able to help you with your issues (the image issues especially).
Hi there! Have you heard already about Kontentino? It's a great social media scheduling and collaboration tool. It really made my SM work flawless. Also, they customer service is excellent! Check out this blog post comparing it with Hootsuite - https://www.kontentino.com/blog/hootsuite-vs-kontentino-in-2019/