If you still have units on that other chain, you can request them to transfer here by sending on 0.003 STEEM transaction to @steembasicincome with "Transfer Refund Request" in the memo (transaction needs to be sent on that other chain, not this one!).

But... those morons that run that other chain made some really stupid rate limit decision for their API nodes, and we have to make a bunch of revisions to correctly process transfers again. I've got a guy working on it (I think we're almost done, and the current bottleneck is on me, not him) but I don't know how soon Transfer Refund Requests will actually be processed.