Might want to explain the specifics of why those depictions led to the ban in China:
- Tibet declared independence in 1912, shortly after the fall of the Qing Dynasty, and while its independence was never formally recognized (with the Republic of China still claiming it as its territory), it was functionally its own country until the People's Republic of China reannexed it in 1951. Both the PRC (i.e. Mainland China) and the rump ROC (i.e. Taiwan) maintain the stance that Tibet was always part of their China.
- West Xinjiang, a.k.a. East Turkestan, briefly claimed independence from 1933 to 1934 and from 1944 to 1946, the second time with the initial backing of the Soviet Union. Both attempts ended with the polities being reabsorbed into the ROC.
- Manchuria and Taiwan were both seized by the Empire of Japan and held until the end of World War II. The former was captured in an invasion and turned into the puppet state of Manchukuo, while the latter was forcibly ceded to Japan after the first Sino-Japanese War.
- Additionally, all of these territories are the subject of ongoing independence movements that the PRC government strictly opposes (as a side note, the ROC also opposes the Taiwanese Independence Movement, which asserts that Taiwan should be a new country rather than either a PRC territory or the ROC's rump state).