Fatal error starting debugging kernel every other deployment on Mac

I'm writing a FireMonkey HD application on my Windows 32 bits machine, and deploying (remote debugging) it on my MacBook running Snow Leopard. I'm running the Delphi XE2 Trial.

Everything is working fine, except for one thing: every other run I hit the following error when I press F9:

Fatal error starting debugging kernel: "Invalid debugger request". Please save your work and restart Delphi XE2.

Restarting XE2 and running again cures this problem... for exactly o开发者_高级运维ne run, then I hit the same error again. Whether I stop the debugging run through CTRL-F2, or gracefully close the application on the Mac, makes no difference. It happens on every project (including new, empty ones with only a single FireMonkey form).The PAServer terminal has no information, it's still on "listen".

Anyone has any tips on how to avoid this issue?

Installing the full version of Delphi XE2 (including update 1) seems to have fully solved my problem.

I've checked the Bug Fix list for any references, but no such luck. Oh well, problem is gone anyway.

[EDIT] And now, the very next day, the problem re-appears.

Delphi 10 gives a similar adventure (Win32 --> Win32 target). It's "business as usual" for the remote debugger.