Saw this on Twitter, for those who are using both exch and FixedFloat. FF is planning to start blocking transactions coming from exch starting today as mentioned in their recent article:
In connection with the position of eXch, we are forced to take the following measures. Now all funds received from the eXch service are considered criminal. In accordance with the Terms of Use of FixedFloat 6.4. in case of detection of such funds, we reserve the right to suspend the provision of services and freeze the funds received. This rule comes into force on March 3, 2025.