Hi beSeen
I can't say I've experienced that problem when masking canopies with tape.
I allow the Future to fully cure (at least 48 hours, longer if possible) before masking.
Then make sure the tape is well and truly sealed down, especially on canopies with intricate curves. I only use Tamiya masking tape - nothing else compares, especially for clear canopies.
Once that is done I've left the tape on the canopy for days without problems.
Hope you don't have any more errors
Mooseman