Re: Shields don't regenerate in single or multiplayer.

Thanks for the framerate tip!  I had SmoothFrameRate=False which was recommended in the Nvidia ME3 tweak guide. 

Switching usevsync=true

or smoothframerate=true fixes the problem. 

I can finally play the game, thanks again.

This is still a problem in ME3 in the Legendary Edition. If I have my fps capped at 240, my shields don't regen. If I limit my fps to 60, the shields begin regenerating immediately.

Same here,.issue still exists on ME LE.

It is embarrasing that being an issue so easy to reproduce (any dev with a decen gaming rig can see that whenever the game is not using the FPS limiter (to 60 frames) the shields/barrier won't reaload (and/or will take a lot of time to reload), specially because now most of the graphic cards of the past 5 years can easily run this game on over 60fps on max settings.

Currently I have the game fps limiter to 240 and vsync set to off (I use the nvidia control panel to turn on v-sync + gsync) and the game locks at 165fps (I've a 165hz display)

Update (26/05/2021): it seems the issue shows up when you limit the FPS using a value above the max framerate your display can render. I'm not using the game's vsync (since I use G-sync configured in Nvidia Control panel).

For example: in my case my display goes upto 144hz (165hz with the built-in OC, which is what I use). So

• if I set the in-game FPS limiter to 240 (virtually: unlimited) => I get to 165 fps (the max possible due to using G-sync + a 165hz display). Shields do not reload properly (take a lot of time to fully reload and your shield explodes after 1 hit)
• If I set the in-game FPS limiter to 144 (the closest value to 165 that the game allows) => I get 144fps and gsync still works (so no tearing, 0 noticeable input lag). Shields work properly

Submitted a bug report for ME LE (with a lot more detail than the paragraph posted above): https://answers.ea.com/t5/Mass-Effect-Legendary-Edition/BUG-ME3-Shields-reloading-issue-when-playing-on-high-framerates/td-p/10374449

If you leave vsync on it will keep it at your monitor refresh rate (144hz) and still recharge your shields!

Hope that helps some, but leaving just VSYNC to ON didn't work for me.  I have a 144hz monitor, VSYNC on, and my shields were not recharging. VSYNC off, FPS limited to 144, also didn't work. Limiting FPS to 120, the highest notch that's BELOW my monitor refresh rate, made my shields recharge literally as soon as I exited the menu.