Warning: React has detected a change in the order of Hooks called by Edit.

[bobbingwide]

While trying to cater for the case where the post type is already known I wrote the following code in the Edit function.

export default function Edit( { setAttributes, attributes } ) {
	const blockProps = useBlockProps();
	var postType = undefined;
	if ( attributes.postType ) {
		postType = attributes.postType;
	} else {
		postType = useSelect(
			(select) => select('core/editor').getCurrentPostType(),
			[]
		);
	}

This appeared to produce the following warning, which eventually caused the block to fail.

react-dom.860550b4.js:61 Warning: React has detected a change in the order of Hooks called by Edit. This will lead to bugs and errors if not fixed. For more information, read the Rules of Hooks: https://reactjs.org/link/rules-of-hooks

1. useContext useContext
2. useCallback useCallback
3. useContext useContext
4. useContext useContext
5. useState useState
6. useRef useRef
7. useEffect useEffect
8. useReducer useReducer
9. useRef useRef
10. useRef useRef
11. useRef useRef
12. useRef useRef
13. useRef useRef
14. useRef useRef
15. useCallback useCallback
16. useMemo useMemo
17. useLayoutEffect useLayoutEffect
18. useLayoutEffect useLayoutEffect
19. useRef useRef
20. useCallback useCallback
21. useContext useContext
22. useContext useContext
23. useState useState
24. useRef useRef
25. useEffect useEffect
26. useReducer useReducer
27. useRef useRef
28. useRef useRef
29. useRef useRef
30. useRef useRef
31. useRef useRef
32. useRef useRef
33. useCallback useCallback
34. useMemo useMemo
35. useLayoutEffect useLayoutEffect
36. useLayoutEffect useLayoutEffect
37. useEffect useEffect
38. useRef useRef
39. useCallback useCallback
40. useContext useContext
41. useContext useContext
42. useState useState
43. useRef useRef
44. useEffect useEffect
45. useReducer useReducer
46. useRef useRef
47. useRef useRef
48. useRef useRef
49. useRef useRef
50. useRef useRef
51. useRef useRef
52. useCallback useCallback
53. useMemo useMemo
54. useLayoutEffect useLayoutEffect
55. useLayoutEffect useLayoutEffect
56. useEffect useEffect
57. useContext useContext
58. useRef useRef
59. useLayoutEffect useLayoutEffect
60. useRef useRef
61. useCallback useCallback
62. useCallback useCallback
63. useContext useContext
64. useContext useContext
65. useState useState
66. useRef useRef
67. useEffect useEffect
68. useReducer useReducer
69. useRef useRef
70. useRef useRef
71. useRef useRef
72. useRef useRef
73. useRef useRef
74. useRef useRef
75. useCallback useCallback
76. useMemo useMemo
77. useLayoutEffect useLayoutEffect
78. useLayoutEffect useLayoutEffect
79. useContext useContext
80. useRef useRef
81. useCallback useCallback
82. useContext useContext
83. useCallback useCallback
84. useContext useContext
85. useContext useContext
86. useState useState
87. useRef useRef
88. useEffect useEffect
89. useReducer useReducer
90. useRef useRef
91. useRef useRef
92. useRef useRef
93. useRef useRef
94. useRef useRef
95. useRef useRef
96. useCallback useCallback
97. useMemo useMemo
98. useLayoutEffect useLayoutEffect
99. useLayoutEffect useLayoutEffect
100. useRef useRef
101. useCallback useCallback
102. useCallback useCallback
103. useContext useContext
104. useContext useContext
105. useState useState
106. useRef useRef
107. useEffect useEffect
108. useReducer useReducer
109. useRef useRef
110. useRef useRef
111. useRef useRef
112. useRef useRef
113. useRef useRef
114. useRef useRef
115. useCallback useCallback
116. useMemo useMemo
117. useLayoutEffect useLayoutEffect
118. useLayoutEffect useLayoutEffect
119. useCallback useCallback
120. useContext useContext
121. useContext useContext
122. useState useState
123. useRef useRef
124. useEffect useEffect
125. useReducer useReducer
126. useRef useRef
127. useRef useRef
128. useRef useRef
129. useRef useRef
130. useRef useRef
131. useRef useRef
132. useCallback useCallback
133. useMemo useMemo
134. useLayoutEffect useLayoutEffect
135. useLayoutEffect useLayoutEffect
136. useContext useContext
137. useRef useRef
138. useCallback useCallback
139. useCallback useCallback
140. useContext useContext
141. useContext useContext
142. useState useState
143. useRef useRef
144. useEffect useEffect
145. useReducer useReducer
146. useRef useRef
147. useRef useRef
148. useRef useRef
149. useRef useRef
150. useRef useRef
151. useRef useRef
152. useCallback useCallback
153. useMemo useMemo
154. useLayoutEffect useLayoutEffect
155. useLayoutEffect useLayoutEffect
156. useContext useContext
157. useRef useRef
158. useCallback useCallback
159. useCallback useCallback
160. useContext useContext
161. useContext useContext
162. useState useState
163. useRef useRef
164. useEffect useEffect
165. useReducer useReducer
166. useRef useRef
167. useRef useRef
168. useRef useRef
169. useRef useRef
170. useRef useRef
171. useRef useRef
172. useCallback useCallback
173. useMemo useMemo
174. useLayoutEffect useLayoutEffect
175. useLayoutEffect useLayoutEffect
176. useRef useRef
177. useCallback useCallback
178. useContext useContext
179. useRef useRef
180. useCallback useCallback
181. useRef useRef
182. useState useState
183. useEffect useEffect
184. useReducer useReducer
185. useReducer useReducer
186. useState useState
187. useMemo useMemo
188. useMemo useMemo
189. useLayoutEffect useLayoutEffect
190. useLayoutEffect useLayoutEffect
191. useRef useRef
192. useRef useRef
193. useMemo useMemo
194. useImperativeHandle useImperativeHandle
195. useMemo useMemo
196. useEffect useEffect
197. useEffect useEffect
198. useRef useRef
199. useRef useRef
200. useRef useRef
201. useRef useRef
202. useLayoutEffect useLayoutEffect
203. useLayoutEffect useLayoutEffect
204. useCallback useCallback
205. useCallback useCallback
206. useContext useContext
207. useContext useContext
208. useState useState
209. useRef useRef
210. useEffect useEffect
211. useReducer useReducer
212. useRef useRef
213. useRef useRef
214. useRef useRef
215. useRef useRef
216. useRef useRef
217. useRef useRef
218. useCallback useCallback
219. useMemo useMemo
220. useLayoutEffect useLayoutEffect
221. useLayoutEffect useLayoutEffect
222. useCallback useCallback
223. useContext useContext
224. useContext useContext
225. useState useState
226. useRef useRef
227. useEffect useEffect
228. useReducer useReducer
229. useRef useRef
230. useRef useRef
231. useRef useRef
232. useRef useRef
233. useRef useRef
234. useRef useRef
235. useCallback useCallback
236. useMemo useMemo
237. useLayoutEffect useLayoutEffect
238. useLayoutEffect useLayoutEffect
239. useCallback useCallback
240. useContext useContext
241. useContext useContext
242. useState useState
243. useRef useRef
244. useEffect useEffect
245. useReducer useReducer
246. useRef useRef
247. useRef useRef
248. useRef useRef
249. useRef useRef
250. useRef useRef
251. useRef useRef
252. useCallback useCallback
253. useMemo useMemo
254. useLayoutEffect useLayoutEffect
255. useLayoutEffect useLayoutEffect
256. useCallback useCallback
257. useContext useContext
258. useContext useContext
259. useState useState
260. useRef useRef
261. useEffect useEffect
262. useReducer useReducer
263. useRef useRef
264. useRef useRef
265. useRef useRef
266. useRef useRef
267. useRef useRef
268. useRef useRef
269. useCallback useCallback
270. useMemo useMemo
271. useLayoutEffect useLayoutEffect
272. useLayoutEffect useLayoutEffect
273. useCallback useContext

Changing the code back to always calling useSelect() appeared to resolve the problem.
I can't say that the React documentation helped much; I have hardly any understanding of hooks.
All I know is that they're used somehow.

var postType = undefined;
	postType = useSelect(
		(select) => select('core/editor').getCurrentPostType(),
		[]
	);
	if ( attributes.postType ) {
		postType = attributes.postType;
	} else {
	  // We've already found a value using select.
	}
	var [meta, setMeta] = useEntityProp(
		'postType',
		postType,
		'meta'
	);