Had a first stage interview over video call, went smoothly with general logistics and ambitions questions. tech test was where it went wrong for me; the requirements were unclear and differed from the description, and I was rejected on the basis of not completing things that weren't in the requirements. I emailed for clarification after the rejection and got an apology and an ask to improve the test for future participants. left a bad taste in my mouth but at least everyone was polite.