Please reference the case study entitled 'SENSETIME GLOBAL IPO: STRATEGIC REACTION TO AMERICAN ATTACK', to effectively answer the following question. $($Please humanize the answer as much as possible$)$

The IPO was based and priced in Hong Kong, but only $10$ per cent of the shares to be issued in the IPO were in the Hong Kong offering. The other $90$ per cent were in the international offering. The bankers arranging the IPO had planned to place the international offering$$s shares with non$-$Hong Kong investors; those investors were dominated by US regulations, US dollars, and institutional investors closely linked with the United States$\mathrm{.}5$ Under the IPO agreements, the designation preventing US citizens from investing in SenseTime was a force majeure$6$ that would release the company$$s financial backers from their IPO commitments. What was SenseTime to do$?$