Did it get lumpy after the etex? If so, I had the same problem with system 3. I think the two part mixes generate heat, which causes the sealer to exude from the wood if you don't let them dry long enough.
I've been waiting 3 weeks after the oil based sealer I use (Behr exterior wood sealer #92) to prime, then wait another week to paint, then wait another week to clear. Yes it takes a while, but it works for me.
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