Cutting & Pasting Code Between Projects Is Odd

If you select more than, say 50 lines, it just pastes a dash symbol.
Works OK if you just do a few at a time.

This used to be fine.

FF Quantum 69.0.1 (64-bit) Ubuntu.

UPDATE
Pretty sure it’s the CUT side that’s failing, as I tried pasting into PyCharm and I got the same character “-” yet I was able to cut and paste a huge amount of code from another PyCharm project into anvil without any issues.

Moving to Bug Reports.

Is this still happening? I can successfully cut and paste 112 lines from one project to another (and into PyCharm) in FF Quantum 69.0.3 (64-bit) OSX.