This is a downstairs ceiling of a 1925 house with obvious previous repairs. While cracked the plaster appears to be still attached to it’s lath. Short of a tear down or just more spot repairs, what’s a reasonable long lasting (if not necessarily permanent) solution for the pictured problem?
You can see previous repaired area using paper tape and mud. I pulled the tape down to get a better idea of what was underneath. It’s been cracking slowly in that area for several years. A recent leak has suddenly worsened that crack as well as causing new cracking over a wider area. You can see rows of tape in the other picture which made me think wall board had been screwed to the ceiling but not so.
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