Signed offer rescinded before start date - Software Engineer IMC Trading Employee Review

I went through the full interview process for a role in Amsterdam. The process itself was thorough and the people I spoke with were knowledgeable. Compensation was competitive and they were transparent about the 30% ruling benefits. After receiving and signing a contract, I resigned from my previous role and began preparing for relocation to the Netherlands. IMC rescinded the offer. I don't know how going onsite for interviews and taking a holiday day off to ensure I could be present does not signal commitment to joining the company. No warning, no opportunity to address whatever concern they had, just a withdrawal of a signed contract before I was due to start. This left me unemployed with no notice. The inflexibility from themselves is a worrying trend. On that basis I would encourage potential candidates to continue with other opportunities to avoid the outcome I experienced.