What the ESTIMATE statement does is to compare the conditions averaged over the three time points. From the output you sent, it seems to me that the average is pretty close between the control and the two treatments, so the results make sense to me.
If you want to compare the conditions at a specific time point, you might get the result you expected. For example,
estimate 'two tx vs control at time 1' condition -1 0.5 0.5 condition*time -1 0 0 0.5 0 0 0.5 0 0;
--Jill
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